X-Men: The Last Stand is a 2006 American superhero film, based on the X-Men characters appearing in Marvel Comics. The third installment in the X-Men film series, the film was directed by Brett Ratner and stars an ensemble cast including Hugh Jackman and Halle Berry. The film's script is loosely based on two X-Men comic book story arcs, "The Dark Phoenix Saga" by writer Chris Claremont and artist John Byrne, and "Gifted" by writer Joss Whedon and artist John Cassaday, with a plot that revolves around a "mutant cure" that causes serious repercussions among mutants and humans, and on the mysterious resurrection of Jean Grey. Filming started in August 2005, budgeted at $210 million, the most expensive film at the time of its release, and had extensive visual effects done by eleven different companies. X-Men: The Last Stand received mixed reviews, but grossed approximately $459 million worldwide, the seventh-highest grossing film of 2006 and the most financially successful of the series.