Screenwriters sometimes pitch their projects as [Film A] meets [Film B]; for instance, Project X might have been pitched as Superbad meets The Hangover. I'd be stunned if R.I.P.D. wasn't pitched as Men in Black meets Ghostbusters or Robocop. The premise is just an absolute Frankenstein of different paranormal movies that's come before it. It also looks pretty fucking entertaining. No one else plays gruff like The Dude.
The synopsis, from IMDB:
A recently slain cop joins a team of undead police officers working for the Rest in Peace Department and tries to find the man who murdered him.