Conversation so far:
who played yoda in the empire strikes back
Frank Oz provided Yoda's voice in each film and used his skills as a puppeteer in the original trilogy.
Frank Oz was a puppeteer in other movies?
Frank Oz puppeteer-ed Miss Piggy, Fozzie Bear, Animal, Sam Eagle and Marvin Suggs in The Muppet Movie.

Question: Was the movie successful?
Self-contained rewrite: Was The Muppet Movie financially successful?