Due to scheduling conflicts with the upcoming "it" girl Jennifer Lawrence, filming of the sequel to X-Men: First Class has been pushed to January 2013 as she will be filming the sequel to The Hunger Games this fall. Lawrence is reprising her role as Mystique in the X-Men film and is also reprising the role of Katniss Everdeen in Catching Fire. After much speculation it was also confirmed that Matthew Vaughn will return to direct the X-Men sequel.
Along with filming approaching for both of these films she is also busy with promo for The Hunger Games along with upcoming promo for a new film, The House at the End of the Street. Jennifer Lawrence is indeed a busy gal.