British director Matthew Vaughn has quit the third X-Men movie because of "personal" problems.
The Layer Cake film-maker, who is married to supermodel Claudia Schiffer, has urgently flown back from Hollywood to his home in London - leaving the movie's pre-production in chaos.
X-Men 3, the second sequel to the smash 2000 comic book adaptation, was Vaughn's first big-budget studio project and he is devastated he's been forced to abandon the project.
Producer Avi Arad says: "This is not a case of creative differences. This is a personal decision by Matthew, and I can tell you that he is heartbroken.
"He loved this material, and he wanted to make this film."
Comic Marvel and studio Fox are expected to make an announcement in the next few days regarding a replacement director, but filming - which was set to start in early July - looks set to be delayed.