Other failed Marvel projects

Spider-Man: James Cameron and Tobe Hooper (the director of Texas Chainsaw Massacre wanted to make a Spider-Man movie in which Peter Parker suffered a horrible transformation, growing 4 extra limbs).

Magneto: X-Men Origins: Wolverine changed Fox’s intention of making a solo film about Magneto. However, the character’s origin story (with elements from the already written script) was presented in X-Men: First Class.