In what movies was Henry Miller in?

Henry Miller was a novelist and essayist, not an actor. He did not appear in any movies.

However, his works have been adapted into films, such as:

* Tropic of Cancer (1970), based on his controversial novel of the same name.

* The Black Spring (1991), a film adaptation of a collection of his short stories.

* Henry Miller: A Life in Art (1989), a documentary about his life and work.

It's possible you're thinking of someone else with a similar name who was an actor, but there is no record of a Henry Miller with a significant acting career.