Before the 21st century filmmaking, post-credit scenes were relatively rare. Typically used for comedic effect and providing little direct connection to the film itself, these scenes playfully winked at audiences. But that would significantly change beginning with 2008's Iron Man and franchise filmmaking in general.
A Brief History of the Post-Credits Scene The first mainstream use of a post-credit scene was in The Silencers. A spy parody vehicle for Dean Martin, the 1966 film concludes by sending up the familiar "James Bond Will Return" title card, with Martin's character surrounded by women and a card setting up his next adventure.
Marvel Takes the Post-Credits Scene to New Heights Despite comics-based films like X-Men: The Last Stand featuring a post-credit scene meant to tease potential future installments, the storytelling technique wouldn't truly take off in modern terms until the release of Iron Man.
Post-Credits Scenes Have Become Too Much of a Good Thing As a means of building public anticipation and advancing a narrative, the continual use of post-credit scenes in franchise filmmaking has more than found a home in modern cinema. But too much of a particular ingredient tends to spoil the proverbial meal. For mainstream audiences, specifically in the last decade, a level of conditioning has set in regarding whether the next blockbuster will throw a cherry on top after the credits roll.
They just gotta be good thats all
Flabbergasted again at the realization that all the knowledge of what makes a good hollywood film lies within second-rate blog writers and not the people making movies. So much wasted potencial there.