Tony Stark

Avengers: Endgame is the first Marvel film to not have a post-credits scene. Many theatergoers would stay behind in anticipation of the continued tradition, but instead, there is a blank screen and a brief clanging sound. The sound heard is Tony Stark's hammer from the first film (Iron Man (2008)). This is an indicator from Marvel that the events are final and marks the official end of the decade-long Infinity Saga.