Per the marketing juggernaut behind the DVD release of The Hangover, the Arlington Cinema N Drafthouse is offering a free New Year’s Day screening of 2009’s number one, hard R hit comedy. But you’ll need to be a bona fide follower of the Drafthouse’s newly minted Twitter account to make it in for what their calling “National Hangover Day.”

Early tomorrow morning, the Drafthouse will tweet a password and admit the first 75 customers who show first come, first serve style. As an extra added bonus for Hangover Day traditionalists, the venue says the first 10 people who in their pajamas or sweatpants will get a bag full of Hangover-branded swag.

Warner Bros. has pulled out all the stops to create a little New Year’s sales synergy for their modestly budgeted mega-hit that could. This is just one of dozens of similar events taking place on January 1st, care of the move giant (folks outside of the DC area can find the nearest participating venue here) and created a fistful of parody PSAs from the films supporting cast members, including Rob Riggle, Rachael Harris and The Dan Band, along with director Todd Phillips.

None of of whom will actually be in attendance tomorrow — but at least the movie’s free and the beer will be cold. Happy New Year all.

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Culture Arlington Cinema N Drafthouse Competes for National Hangover Day