After Iron Man 3 opened to extremely positive reviews and very impressive box office numbers, Marvel is scrambling to lock up their prized possession: Robert Downey Jr. For those unaware, the actor currently has no contract with the studio. After the success that the original Iron Man film saw, Downey Jr. worked out a deal where he would receive a percentage of the first-day gross for all future films. This ultimately ended up in his favor as he earned somewhere around $50 million for The Avengers. Unfortunately though, the actor's contract with Marvel expired after his third solo outing as Iron Man and now, his future within the Marvel universe is uncertain.