Melissa McCarthy: normal here, but kinda nuts in a new movie trailer. (Chris Pizzello/CHRIS PIZZELLO/INVISION/AP)

When Melissa McCarthy pretends to be Jason Bateman, very bad things happen. That’s the premise of “Identity Thief,” a comedy that pairs the Emmy winning-actress with Michael Bluth in a battle for the right to be called Sandy Bigelow Patterson.

Based on the trailer, it appears the movie will involve at least one Hobbit joke, Bateman getting punched in the throat multiple times, a bloody nose and McCarthy acting like a rabid, perm-haired lunatic. Which is sort of her wheelhouse.

Check out the trailer below, which is either way over-the-top or just right. I still can’t decide.