In posting a comment on a different thread, I came across this old post on Criterion's website (from 19 years ago... dang), where Peter Becker commented that they sometimes play a game around the office, asking if someone is a "master" and saying that it takes three great films/works to be considered a master. (https://www.criterion.com/current/posts/728-voyagers)

So, who's your master (director, writer, actor, cinematographer, etc.) and what are their three great works?