Trivia

Son of Sylvester Stallone and first wife, Sasha Stallone Ash.

He played Robert Balboa, Jr., the son of his father Sylvester Stallone's character Rocky Balboa, in Rocky V (1990). His younger brother Seargeoh Stallone previously played the newborn Robert in Rocky II: La Revanche (1979).

Turned down the role of Robert 'Rocky' Balboa Junior in Rocky Balboa (2006) due to prior obligations with Grindhouse Releasing [us].

His grandfather Salvatore Stallone (aka Frank Stallone Sr.) was born in Castellammare Del Golfo, Sicily. Sage often called Italy his second home, and visited several times a year.

Friend Quentin Tarantino used Stallone's trademark Grindhouse Releasing [us] feature presentation logo before the opening credits of Kill Bill: Volume I (2003) and Grindhouse (2007). Previously they released Lucio Fulci's L'Au-delà (1981) together several years earlier.

Co-founder (together with Bob Murawski) of Grindhouse Releasing [us], a Los Angeles based company, dedicated to the restoration and preservation of quality exploitation feature films (founded in 1996).

Vincent Gallo sold him The Brown Bunny (2003) camera package because it was organized so precisely no one could scratch it, touch it, or break it up. Gallo often claims Sage is one of his favorite people in the world and is relieved the camera package went to his hero.

Godson of late actor Joe Spinell, Sylvester Stallone's best friend.

He was a heavy smoker.

Nephew of Toni D'Alto, who passed away a few weeks after him.

Older brother of Seargeoh Stallone. Older half-brother of Sophia Rose Stallone, Sistine Rose Stallone and Scarlet Rose Stallone. Nephew of Frank Stallone. Grandson of Jackie Stallone and Frank Stallone. Stepson of Jennifer Flavin. Former stepson of Brigitte Nielsen and Rick Ash.

Was friends with director John Gulager and cast John's father Clu Gulager in his short Vic (2006).