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.
Was The Muppet Movie financially successful?
The Muppet Movie proved to be a huge hit at the box office during the summer of 1979 and ended up grossing $76,657,000 domestically.

Question: A sequel to the film was released, right?
Self-contained rewrite: A sequel to The Muppet Movie was released theatrically?