Sylvester Stallone fell out with his dad on the set of Rocky after giving him a cameo role in the movie.
The actor/screenwriter was thrilled to be making his 1976 boxing movie and he wanted to share his success with his father, Frank Stallone Sr., so he gave him a small part as the bell ringer standing close to the action as Stallone's character Rocky fought Apollo Creed, played by Carl Weathers.