Blockbuster franchises are popular series of movies, video games, or books that attract large audiences and generate significant revenue. These franchises often feature beloved characters and engaging storylines, making them appealing to fans of all ages. Examples include Star Wars, Harry Potter, and Marvel Cinematic Universe, each creating a vast universe that keeps audiences coming back for more. These franchises typically expand beyond their original format, leading to merchandise, spin-off series, and even theme park attractions. The success of a blockbuster franchise can create a cultural phenomenon, influencing trends and inspiring new generations of creators and fans alike.