Avengers 4 was originally titled Infinity War part 2, but that's all changed, and now Infinity War will not simply be an opening chapter. The new film is taking on quite a bit story wise when it comes the insanely beloved Infinity Gauntlet saga from the comics, but Infinity War co-director Joe Russo wants fans to know this will not be a two-parter cut in half scenario. "In the way that all Marvel movies sit as a stand-alone this one's a stand-alone," Russo told Fandango.