Madden, the David O. Russell-directed John Madden biopic starring Nic Cage, got its first full-length trailer today, and to be completely honest, I have no idea what to make of this movie. Based on the two minutes seen in the trailer, it could either be a subversive comedic delight or The Room 2, but with even more footballs and fewer tuxedos. https://www.youtube.com/watch?v=xzh7HzLXXpk The trailer, which shows some of John Madden’s time as the head coach of the Raiders before shifting…