Undeveloped X-Men projects

X-Men Origins: Magneto
X-Men Origins: Magneto, initially refered to simply as Magneto was a planned prequel to the film X-Men, which would have told the story of Erik Lehnsherr. The film has since been cancelled and the script incorporated into X-Men: First Class.

Sheldon Turner was hired by 20th Century Fox to draft a spin-off X-Men film in 2004 and he to write Magneto, pitching it as "The Pianist meets X-Men." David S. Goyer was hired to direct in 2007.

Although there was a script in hand, producer Lauren Shuler Donner said in an April 2009 interview that whether or not the film gets made was still uncertain and that it would partly depend on how well X-Men Origins: Wolverine did in theaters and the overall reaction to it.

In August 2010, Shuler Donner announced that the film would almost certainly not be made as much of the story had been incorporated into X-Men: First Class and Bryan Singer and Sheldon Turner were given story credit for their work on the film.

Emma Frost
In 2006, David O. Russell began development on a film based on the character of Emma Frost.

Storm
Halle Berry expressed interest in reprising her role as Storm in a solo spin-off.

Mystique
Rebecca Romijn expressed interest in reprising her role as Mystique in a solo spin-off.

Gambit
Gambit is a planned spin-off of ''X-Men Origins: Wolverine focusing on the character of Remy LeBeau. Taylor Kitsch will reprise his role as Gambit for the spin-off. producer Lauren Shuler Donner declared that Gambit is one of her favorite X-Men characters, and a film for him would be considered depending on the success of Wolverine and said earlier that there were studio talks going on about a possible Gambit film.