To answer your first immediate question: yes, I do own a glow in the dark velociraptor t-shirt. And yes, it will probably sway my judgement in regards to this movie.
Premise: In a movie that I saw five days ago yet can barely remember anything about it; two guys (Jake Johnson and Damon Wayans Jr) dress up as cops for a party, and then when they leave the party they notice everyone thinks they’re cops, so they say “Let’s Be Cops” and now they are pretending to be cops. Then they get caught up in a big investigation with dangerous people, so they actually have to do real police work while just pretending to be police. Is this making sense to you yet? They’re not cops, but they are pretending. That’s not just the premise of the movie; it’s also the name of it. Two normal guys. They are fake cops. Let’s Be Cops. [coughs gently into hand]