"Shrek Forever After" (2010): Shrek enters an alternative reality where he never united with Fiona
"The Matrix" series (1999-2003): Neo discovers a simulated reality called the Matrix and battles against machine overlords.
"Interstellar" (2014): Astronauts journey through a wormhole to seek habitable planets and save humanity from a dying Earth.
"Inception" (2010): A team of thieves enters people's dreams to manipulate or extract information.
"Cloud Atlas" (2012): Multiple storylines across different time periods and realities interconnect, exploring the theme of interconnectedness.
"Shrek Forever After" (2010): Shrek enters an alternate reality where he never got together with Fiona.
"Spider-Man: Into the Spider-Verse" (2022): The upcoming sequel explores the concept of the multiverse in the Spider-Man universe.