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We have NO idea why Dallas star Jesse Metcalfe attended the world premiere of The Inbetweeners Movie tonight, but it gave us a good excuse to show the trailer.  For those of you who’ve watched the British series, this is really exciting.  For those of you who haven’t, we suggest you hop on the interweb and check out an episode.

The series stars James Buckley, Simon Bird, Joe Thomas and Blake Harrison as four high school friends who do their damndest to get laid (with the exception of Bird’s character, who’s too busy trying to get into a solid university).  The premise sounds trite, but trust us-The Inbetweeners is a knee-slapper (better than The IT Crowd, if you ask me).

Also at the premiere at Vue West End in London, England: Laura Haddock, Lydia Rose Bewley, Tamla Kari, Hannah Tointan, Jessica Knappett, Emily Atack, Emily Head, Greg Davies and Leigh Francis.

Check out the NSFW trailer after the jump.