updated 07/14/2012 AT 11:00 AM ET
•originally published 07/14/2012 AT 11:15 AM ET
They were father and son in the movies, too.
Sage Moonblood Stallone, who was found dead Friday at age 36, acted with his father Sylvester in one of the elder Stallone’s biggest franchises – the Rocky series – playing Rocky Balboa Jr. in Rocky V.
Sage, who was 14 when the movie was released in 1990, was “agreeably natural in some scenes, improbable in others,” New York Times critic Janet Maslin wrote in her review at the time.