Two and half is maybe a little stingy but objectively speaking this movie just isn't very good. Love the cast but the actors are phoning it in and it certainly doesn't look very good visually. And the story takes forrrreverrrr to get where it's going.
All that said, once it does finally get going, the final 45 minutes or so, while stupid, is fairly entertaining. I'd be mad if I paid ten bucks for this but as a distraction on a Friday night I was happy enough and didn't take a nap or check my phone constantly.