usually the contracts are just for 3 altogether so the movie that was just released is his first of 3.
Its the same contract that Tobey McGuire signed but he extended his for 3 more movies.
Eric Bana however only signed a 1 movie contract which is why they are remaking the Hulk with the Incredible Hulk staring Ed Norton (he signed a 3 movie contract) to replace Eric in the future Marvel movies.
Ben Affleck is still signed up for 2 more movies under his Daredevil contract, Thomas Jane is still under his contract for the Punisher films, Hugh Jackman has 4 more movies under Wolverine contract, all 4 of the fantastic four actors are under 2 more movies contract, and they have 3 more comic books being turned into movies (including Captain America, Moon Knight, and Silver Surfer).
gonna be a big few years for Marvel.