The songs "I Will Sing You Songs", "Mahgeetah" and "Wordless Chorus" are referenced in dialog.
The robot that says "And #5 feels... alive!" is a reference to the 1986 film Short Circuit.
The scene where Steve is stabbed in the stomach is a reference to the film Pay It Forward.
Roger's groupie disguise, which he calls, "Abbey Road", is a reference to the character "Penny Lane" from the 2000 film Almost Famous, played by Kate Hudson. Both character's names are references to The Beatles. Stan's disguise is also a reference to the lead character, "William Miller", from Almost Famous played by Patrick Fugit.