Five the Hard Way (1969)
Crow: He saw Big Jake.
Servo mentions the aka title ("Sidehackers").
Joel: "I thought that sidehackin' was really bad."
Tom says that "Being from Another Planet" is worse than "Sidehackers."
Mike and the bots sing Only Love from this film.
"He's the bad guy from Sidehackers."
"Why is he now having flashbacks to the movie Side Hackers?"
"...when combine Brazilian Planet of the Apes with Brazilian Sidehackers into one movie."
'Five the Hard Way' (aka 'The Sidehackers') is the featured movie in this 'MST3K' episode.