Trivia about X-Men: First Class. * To prepare for his role as Charles Xavier, James McAvoy shaved his head... and learned that the filmmakers wanted Xavier to have a full head of hair in the prequel. Throughout the first month of filming McAvoy had to wear hair extensions. * Although they barely interact during this movie (and in fact are antagonists through most of it), according to the comics canon, Azazel and Mystique eventually have a child together, Kurt Wagner/Nightcrawler (who was played by Alan Cumming in X2). * During the Cerebro sequence, one of the mutants to be seen is Cyclops as a young boy playing with a glove and baseball, noticeable by his sunglasses, and the other being Storm, most noticeable by her haircut. * A telepathic battle between Professor X and Emma