[2] Sage has appeared in more than 90 movies, most notable American Psycho (2000), We Are What We Are (2013), Every Secret Thing (2014), and Wrong Turn (2021).

[1] Beginning in eighth grade, Sage became a victim of child sexual abuse, an experience that would later influence his performance in Mysterious Skin.

[4] He made his screen debut appearing in the 1989 comedy-drama film The Unbelievable Truth written and directed by Hal Hartley.

Sage later appeared in several more of Hartley's movies, such as Trust (1990), Simple Men (1992) and Flirt (1995), and other independent films.

He received two Fangoria Chainsaw Awards nominations for performances in the horror films We Are What We Are (2013) and Wrong Turn (2021).