Spider-Man in film
The first live-action film based on Spider-Man was the unauthorized short "Spider-Man" by Donald F. Glut in 1969. This was followed by "Spider-Man", an American made-for-television film that premiered on the CBS network in 1977. It starred Nicholas Hammond and was intended as a backdoor pilot for what became a weekly episodic TV series.
James Cameron's unrealized projects
After finishing the filming of "True Lies", on September 1, 1993, "Variety" reported that Cameron had sent a screenplay (apparently written in 1991) to Carolco Pictures for the long-planned "Spider-Man" film, a theatrical project that had been in development since 1983. Leonardo DiCaprio was attached to play Spider-Man, Cameron's frequent collaborator Arnold Schwarzenegger was attached to play Dr. Octopus. However after problems that producer Menahem Golan had with Carolco (which ended in the bankruptcy of the latter), Cameron left the project and signed a contract with 20th Century Fox. The film was finally released in 2002 directed by Sam Raimi and written by David Koepp.