Old habits die hard, and that's never been more apparent than in the brand-new red-band trailer for "American Reunion," the fourth "American Pie" movie centering on the original cast.

It's been 12 years since the first "Pie," and Jim (Jason Biggs) may have gotten married in the last movie, but he's still the same awkward, horny kid at heart. And as you'll see in the trailer, the same goes for his wife, Michelle (Alyson Hannigan).

The new movie follows the gang as they prepare for the East Great Falls class reunion. But what makes the get-together truly special is that this is the first time since "American Pie 2" that the entire cast is back together onscreen. When we say the entire cast, we mean the entire cast. The movie brings back many of the memorable smaller roles from the series, including the Shermanator, Stifler's mom and even John Cho as MILF Guy #2.

The trailer doesn't show much in the way of the story, but it has one big surprise built in that should set off the good old "American Pie" cringe. No matter how much things have changed, it looks like for Jim, they're exactly the same.

"American Reunion" hits theaters April 6 and stars Biggs, Hannigan, Seann William Scott, Mena Suvari, Shannon Elizabeth, Tara Reid, Chris Klein, Thomas Ian Nicholas and Eddie Kaye Thomas.

<a href='http://www.bing.com/videos/watch/video/american-reunion-movie-trailer-mature/5hmvk92?src=v5:embed::' target='_new' title=''American Reunion' movie trailer (mature)'>Video: 'American Reunion' movie trailer (mature)</a>

Check out everything we've got on "American Reunion."

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