It is though way behind the leader in the Pixar crown, Toy Story 3 which took an incredible £21 million on it's debut and went on to become one of the highest grossing animation of all time.
Inside Out has a good start and is inline with Finding Nemo from 2003, it will easily go over the £30 million mark in the coming days.
Last weeks top film, Ant-Man, falls to number 2 this week with a £2.5 million weekend gross raising its total to £9.6.
One other new entry on the top 10 this week is Southpaw new at 4 with £1.6 million.
Historical Box Office
A year ago
Dawn of The Planet of The Apes extended its stay at the top of the box office by another week leaving Hercules to debut at number 2.
Five years ago
Toy Story 3 made its very impressive debut at the top moving aside Inception which fell to number 2.
Ten years ago
Fantastic Four over took the number one spot on its debut week of release while Madagascar fell to number 2.
Fifteen years ago
Stuart Little moved to the top of the box office after 3 weeks on the chart knocking Chicken Run down to number 2, High Fidelity was the highest new film at number 4.
Twenty years ago
Stallone's Judge Dredd was the top new film making its debut at number 1 knocking Batman Forever down to number 2
Now in it's second weekend of release Dawn of the Apes easily hangs on to the top spot with a weekend take of £3.7 million, this brings it's total gross to £17 million after 10 days of release.
Highest new film of the week is Dwayne Johnson in a retelling of Hercules, an all out action film rather than historical retelling of the Greek myth it's directed by Brett Ratner.
Hercules took a gross of £1.5 million on it's opening weekend, it has a long was to go to even be one of Johnson's best films as he's been part of the Fast and Furious series and The Mummy series.
Likewise Brett Ratner has been part of the X-Men series and directed the 2 Rush Hour movies, and also directed a Hannibal Lector film, all high grossing franchises.
Hercules could sink quite fast especially with some of the new releases coming in the next few weeks which will be ultimately bigger box office hits.
There are plenty of other new releases this week in the form of
The Purge Anarchy at 3
Earth to Echo at 6
The House of Magic at 10
This time last year new at the top was The Wolverine based on the X-Men universe which topped on it's debut knocking Monsters University into 2nd.
Five years ago Harry Potter and the Half Blood Prince was still at the top in it's second week and The Proposal with Sandra Bullock was new at 2.
Ten years ago Spider-Man 2 held onto the top spot for a second week with the highest new film being Thunderbirds at 3.
Fifteen years ago it was Star Wars Episode I: The Phantom Menace holding onto the top spot for a second week, and with nothing daring to open up in the wake of such a big film the highest new film was Hindustan Ki Kasam at 10.
Grossing £8.7 million from Thursday to Sunday it took more than the rest of the box office combined.
Dawn well and truly out preformed it predecessor Rise of the planet of the Apes which took £5.8 million on it's debut weekend in August 2011, it went on to gross £20.5 in total.
Dawn should go on to out-gross that film and could come close to £25 - 30 million in the UK.
Also worth a mention this weekend is two even movies that got themselves inside the top 5 on the box office chart, Monty Python Live (Mostly) made number 4 with £1.8 million which Andre Rieu took him Maastricht concert to number 5 with £830,000.
Other new film to debut this week are:
Pudsey The Dog The Movie at 7
This time last year Monsters University held on to the top spot which mean The Worlds End debuted at 2.
Five years ago Harry Potter and the Half Blood Prince made it's debut at the top of the box office knocking the previous number 1, Ice Age: Dawn of The Dinosaurs, to number 2.
Ten years ago say Spider-Man 2 make it's cinematic debut at the top of the box office knocking Shrek 2 into the number 2 spot.
Fifteen years ago was an historical time in cinema as the much anticipated, and to an extent much hated, Star Wars Episode I: The Phantom Menace made it's UK debut at the top, 2 months after it's US debut. The Mummy fell to number 2.
Taking the top spot is the 4th in the Transformers series of movies from director Michael. The film had previews last weekend and takes the number 1 position with ease this week grossing £11.7 million in the process, it is the biggest grossing opening weekend of the year so far.
It's interesting to note this opening gross does include the £8 million from last weeks preview screenings, a £3 - 4 million is a closer opening weekend figure.
Opening in second place after going on general release is How to Train Your Dragon 2 which also includes money from it's previews over the last 3 or 4 weeks.
Falling to third this week is last weeks top film Mrs. Brown's Boy's D'Movie which after 3 weeks has grossed £11.8 million.
There were a number of other new film this which included
Begin Again at 5
Boyhood at 7
Humpty Sharma Ki Dulhania at 12
Last year at the box office Monsters University opened at the top of the chart knocking Despicable Me 2 into second place after 2 weeks at the top.
Five years ago Sasha Baron Cohen opened at the top with Bruno which knocked Ice Age: Dawn of The Dinosaurs to second place.
Ten years ago Shrek 2 held on tight at the top for another week keeping Around the World in 80 Days in second place for it's debut.
Fifteen years ago there was little change at the top with The Mummy retaining it's lead for a second week, highest new film was 10 Things I Hate About You at 5.
With Gravity holding its own at the top, Enders Game had to settle for the runner up spot to debut. The Harrison Ford starring film was meant to be a big sci-fi film released at the end of October last year, but a weak entry at 5 on the box office saw the film sink after 4 weeks taking just shy of £3 million.
It's an interesting week for movie sales, Disney has its annual sale on currently and this has seen 9 Disney disks enter the top 20. The highest of these is Monsters University from last year, but The Little Mermaid has also made a high entry at 7, incredible for a 25 year old film.
Hugh Jackman one again plays Wolverine in the tale set in modern day Japan, based on one of the best comic strip Wolverine stories. The Wolverine opens to £4.6 million which is lower than the previous stand alone Wolverine film which did £6.6 million.
Monsters University falls from the top this week after 3 weeks to number 2.
This time last year The Dark Knight Rises was still the top film with another fantastic week at the UK taking £7.2 million. The Lorax was the top new film, at 2 with £1.8 million.
Five years ago The Dark Knight burst into the top of the chart with £11.2 million knocking Mamma Mia from the top while coming of age teen drama Angus Thongs and Perfect Snogging was the new at 4.
Ten years ago The Hulk was still the top film with £1.3 million and animated tale Sinbad: Legend of the Seven Seas was the top new film with £800,000.
Fifteen years ago Godzilla was still the top film with £2.1 million and with a fairly static top 5 the highest new entry of the week was The Gingerbread Man at 7 with £171,120.
10 days on release and a second weekend as the number one film in Great Britain Monsters University takes £2.7 million pushing it's total UK gross to £8.6 million.
Highest new film of the weekend is The Worlds End, Simon Pegg and Nick Frost on a bender that sees the world end, directed by long time collaborator Edgar Wright.
The Worlds end took £2.1 million at the box office, much lower that I would have expected for an anticipated film, but like last weekend the weather has clearly kept people outside.
In accordance with my expectations The Worlds End didn't take the top spot from Monsters University, it was way off by nearly £700,000 and also the box office taking stayed quite stagnant, although with the summer holidays now upon us next week could be different.
Last year at this time The Dark Knight Rises took the box office by storm taking £14.3 million on it's opening weekend, knocking Ice Age Continental Drift from the top and also becoming the highest new film of the week.
Five years ago Mamma Mia was still at the top slowly raking in the money, and also keeping Wall-E from debuting at the top, the Pixar film has to settle for number 2.
Ten years ago The Hulk starring Eric Bana and directed by Ang Lee debuted at the top knocking Charlie's Angels Full Throttle down to number 3.
Fifteen years ago Godzilla took the top spot on it's debut weekend from Six Days Seven Knights.
Their first film together Shaun of the Dead was a big hit back in 2004, and has since achieved a cult status and it's fair to say it is a British classic.
2007 saw them re-unite in Hot Fuzz which become a bigger than hit than Shaun achieving a UK gross of £20 million, it also made big stars of the 2 principle actors and director Wright.
This one completes the trilogy that has become known by the writers, Wright and Pegg, as the Cornetto trilogy, and is destined to be an even bigger hit.
I fully expect The Worlds End to be an even bigger hit, the two stars have been doing the press rounds and have been funny and likeable. A top place debut is very likely, although with Monsters University not doing that well last weekend because of the hot UK weather it might make that guarantee an uncertainty as Monsters could still rake in the audience, although the 2 films are pitched at a very different market.
Monsters University was the champion debuting in the top spot but it's £3.46 million gross is way lower than expected.
Despicable Me 2 drops to second place with £2.22 million and second highest new entry Pacific Rim has come up very close behind with £2.19 million. Inline with my predictions Monsters University debut at the top, although I predicted the highest debut weekend of the year and it fell short by £8 million and Pacific Rim did debut in third.
Last year Ice Ace Continental Drift finally for a national release after a couple of weeks on limited and went back to the top of the box office with £10 million knocking The Amazing Spider-Man from the top after a single week.
Highest new film (of sorts) was Magic Mike at 3.
Five years ago Mamma Mia stormed the box office on it's debut weekend taking the top spot from Hancock which fell to runner up spot. Mamma Mia would go on to be the highest grossing film in the UK for a short time.
Ten years ago Charlie's Angels Full Throttle was still at the top with Daddy Daycare being the highest new film at 3.
Fifteen years ago Six Days Seven Nights was the top film with Mad City the highest debut at 6.
Monsters University, the new film from Pixar and the sequel to 2002's Monsters Inc. is the film most likely to dislodge the Despicable Me sequel from the top.
There is such good buzz about for this film that I fully expect it to have the highest opening weekend of the year to date and could even have a debut weekend in the £20 million mark.
The original film in comparison had a £9.2 million opening and went on to gross £38 million in the UK, that was over 10 years ago.
Pacific Rim is the new film from Guillermo del Toro and despite never having had a major hit at the box office has a growing and loyal fan base, and this being a high budget Hollywood sci-fi film he will see bigger numbers that usual.
A top 5 placing is almost guaranteed, but beating Despicable Me 2 is a long shot and I suspect third place is where is will land, but runner up to Monsters University wouldn't surprise me.
UK release date: 12th July 2013
Highest chart position: 1
Weeks on box office: 13
Total UK gross £30,554,711 and the 100th top grossing film in the UK
Total World gross $744,888,329 and the 77th top grossing film globally
UK BBFC Certificate: UGenres: