The Avengers 4 title may have accidentally slipped a little early Production is well underway on Marvel Studios‘ massive superhero ensemble, Avengers: Infinity War. The film is set to hit the big screen May 4, 2018 with its still officially untitled followup then arriving one year later on May 3, 2019. Originally announced as Infinity War – Part I and Infinity War – Part II, it was later revealed that a new Avengers 4 title would be revealed at a later date.