Which film franchise pioneered the modern post-credits scene as a marketing tool to build anticipation for sequel films?

Film marketing has transformed dramatically over the decades, with studios developing increasingly sophisticated strategies to build audience anticipation and loyalty. From simple newspaper ads to complex cross-platform campaigns, the way movies are promoted directly impacts their success. Test your knowledge about a revolutionary product marketing strategy that changed how major film franchises connect with their audiences.

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Marvel Cinematic Universe with 'Iron Man' (2008)
Star Wars with 'The Empire Strikes Back' (1980)
Harry Potter with 'Chamber of Secrets' (2002)
Pirates of the Caribbean with 'The Curse of the Black Pearl' (2003)