What was David best movie?

Please clarify who you are referring to as "David". There are many famous actors, directors, and other figures named David, so providing more context would help me understand who you are asking about.

For example, are you asking about:

* David Lynch: A famous director known for films like "Mulholland Drive" and "Blue Velvet"

* David Cronenberg: A director known for body horror films like "The Fly" and "Videodrome"

* David Fincher: A director known for films like "Se7en" and "Fight Club"

* David Bowie: A musician and actor known for films like "The Man Who Fell to Earth" and "Labyrinth"

Once you provide more context, I can help you determine what is considered their best movie.