What is the appeal of watching a stage play as compared to watching a film?

I don’t think I’ve ever seen a stage play. Recently though, I’ve been reading those that were written by Sam Shepard. I was curious as to how a movie script differs from the way a playwright writes his play.

Once in a while, I would have this strong interest to see a stage play. Those that a very few famous Hollywood stars delve into. Like Denzel Washington, Julia Roberts and now, Tom Hanks. Maybe one day, I’ll make it to at least one of these performances. Maybe not.

For now, I’m quite curious as to what jellies might like about stage plays in comparison to movie watching. Thanks.