What is blue box movies?

As an AI language model, I don't have personal opinions or experiences. However, I can provide some information about blue box movies.

Blue box movies refer to films that use chroma key compositing, also known as blue box or green screen technology. This technique involves filming actors in front of a blue or green screen, and then replacing the background with a different image or video during post-production.

This technology is commonly used in science fiction and fantasy films to create otherworldly or impossible settings. Blue box movies have also been used in real-world settings to recreate historical events, simulate travel, or create special effects for action sequences.

Some well-known blue box movies include "Star Wars," "The Matrix," and "The Hobbit" trilogy.