The Other Guys gets the award for movie I had wicked low expectations about, but it ended up being pleasantly hilarious. (The trailer is particularly terrible.) Part of the reason it’s funny is that Marky Mark is playing Sgt. Dignam from The Departed for laughs, basically.
Also, in the “momumentary” commentary that’s on the DVD, Marky Mark + Will Ferrell’s moms are like “It’s too early to do a commentary, but it’s never too early to look at The Rock. And thank god this film actually has a plot.”