A cinematic universe is a shared fictional universe that connects multiple films and television series, allowing characters and storylines to interact across different productions. This concept enables filmmakers to create expansive narratives that can explore various themes and genres while maintaining a cohesive storyline. One of the most notable examples of a cinematic universe is the Marvel Cinematic Universe (MCU), which includes popular films like The Avengers and Black Panther. Another example is the DC Extended Universe (DCEU), featuring characters such as Superman and Wonder Woman. These universes often attract dedicated fanbases and encourage cross-promotion among different media.