I am sure the pun is intended in more ways than one. Bruce Willis stars alongside Tracy Morgan as a couple of Dicks, as in Private Detectives, hence the original title, and a better title at that.
That said the first trailer for the film does nothing to show that this will be more than an average comedy and nothing which shows off the directorial or writing talent that Smith has, or for that fact show the comic tallent Bruce Willis has?
Check out the trailer at Apple.com's website and let me know what you think.