At least in terms of finances, it didn’t actually bomb. At the time of its release it was the highest grossing film in the “X-Men” series, which was one of Fox’s hottest properties.
The issue comes from a changeover in creative teams. The director from the first two films, Bryan Singer, left 20th entury Fox to make “Superman Returns” for Warner Brothers.
Fox was reportedly furious and wanted a third X-Men movie to come out before Singer’s Superman – no matter what.
The result is a film that feels hugely rushed and overly crowded at the same time. Instead of following the story of the comics or focusing on the emotion of the characters, “X-Men: The Last Stand” instead crams as much action as possible into a laughably small running time.
The film was such a disaster with critics and comic book fans that Fox instead chose to focus on a Wolverine spin-off franchise. When the X-Men series of films finally returned, it was done in the form of the rebooted “X-Men: First Class.” “X-Men: The Last Stand” was directed by Brett Ratner, who has clearly never read a comic book.