Candy Clark, with a large black hat strategically pulled low over her face, played Thomas Jerome Newton in one scene while David Bowie was ill and unavailable to work the day it was shot.
Toward the end of the film, in the record store, Bryce walks past a display for David Bowie's "Young Americans" album.
The music that Oliver Farnsworth is listening to in the first scene we see him in and in one of the last is Gustav Holst's "The Planets".
At one point Mary-Lou shouts to Tommy, "Tommy Can You Hear Me?" which is a reference to the The Who's rock opera Tommy (1975) and the song of the same name.