At this point, I'm starting to think that it's contractually obligated that if either Kevin Spacey or Kate Bosworth appears in a film, the other automatically gets a part. OK, so maybe I'm exaggerating just a little, but you can't deny that the two seem to really enjoy working together. Yahoo Movies is now hosting the trailer for their latest collaboration, 21, the real-life story of six M.I.T students who develop a foolproof plan to win at Black Jack. The film is based on the book Bringing Down the House by Ben Mezrich (and I guess I don't have to explain why they chose to go with the new title 21 -- I doubt Sony wanted their audiences getting the film confused with a C-grade Queen Latifah comedy).

The story centers on a group of M.I.T math students who along with their 'mentor' come up with a new system of "counting cards" -- if you haven't read the book and don't mind a little math in your light reading then I would definitely recommend it. Although I wouldn't recommend trying out their system, unless you don't mind the idea of getting roughed up by pit bosses.

The film was directed by Robert Luketic, who isn't exactly a household name, but is probably best known as the director of Legally Blonde. The book was adapted for the screen by Allan Loeb (Things We Lost in the Fire) and Peter Steinfeld (Analyze That). Joining Spacey and Bosworth are Laurence Fishburne in what looks like the role of a casino boss (better known as "the Heavy" in the flick) and Jim Sturgess as the newest member of the gang. 21 is set for release on March 28th, 2008.