Watch Adam Sandler Play Both 'Jack and Jill' in New Trailer

Adam Sandler has traded in his Just Go With It Wife Jennifer Aniston for Katie Holmes in the upcoming comedy, Jack and Jill. And instead of even casting someone to play his sister in the film, he's just taking on the role himself!

OK! GALLERY: JENNIFER GARNER BRINGS HER GIRLS TO ADAM SANDLER'S HOUSE FOR A BIRTHDAY BASH

According to Coming Soon, Jack and Jill is a story about Jack Sadelstein (Adam) who is a successful advertising executive with a beautiful wife (Katie) and kids. However, he hates every Thanksgiving when his identical twin sister Jill (also Adam) comes to visit.

And surprise, Al Pacino shows up in this new trailer, too! Oddly enough, he falls for Adam's female character Jill.

What do you think of this upcoming Adam flick?

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Watch the trailer, below!