The movie Joker is indeed based on comics. It takes elements and concepts from the DC Comics universe to craft a dark and compelling story about the infamous character.
It depends on your personal taste. Some people find the Deadpool comics funnier because they have a longer history and more complex storylines. Others might prefer the movie's visual and cinematic humor. But overall, both have their charm.
Definitely. The movie takes elements and themes from the Joker comics to create its story. However, it also adds its own twists and interpretations to make it unique.