David Fincher’s highly anticipated film adaptation of The Girl With the Dragon Tattoo, starring The Social Network’s Rooney Mara, doesn’t hit theaters till December, but somehow a trailer for the top-secret film has surfaced on the net.

Could Sony Pictures be the leak?

The trailer was supposedly pirated in Europe, but how often do they get American movies before the U.S.?

The theater also showed an MPAA advisory at the beginning, which is aimed at U.S. moviegoers, and Sony hasn’t made an attempt to remove the video, or make a comment on it's early appearance. Hmmmm.

It’s also curious how top-quality the video is. There are no other theatergoers in the room, and the picture is near perfect, aside from a few minor shakes at the beginning.

Could Sony be taking a cue from Dragon Tattoo’s computer savvy heroine, Lisbeth Salander, and try fool us by releasing it early?

Check out the trailer, and tell us when you think!