* Literally, stars in the sky? If so, that would probably be a film with lots of night sky footage.
* Famous actors? That's harder to quantify, as fame is subjective. Some movies might have many A-listers, while others have a large ensemble cast of lesser-known actors.
* People on the screen? This could be a movie with a large crowd scene or a film full of CGI characters.
Here are a few contenders that could fit different definitions:
* "The Lord of the Rings: The Return of the King" (2003): Has a huge cast and a large number of extras, including armies of orcs and other creatures.
* "Star Wars: Episode III – Revenge of the Sith" (2005): Features a massive space battle scene with countless CGI ships and characters.
* "Titanic" (1997): Has a large number of extras representing the passengers and crew of the doomed ship.
Without a specific criteria, it's impossible to say definitively which movie has the most stars. If you have a more specific definition in mind, please let me know and I can try to give you a better answer!