Continuity mistake: In the mansion in the scene at the chess table for half the scene the chess pieces are there. The end of the scene, the pieces are gone.
Continuity mistake: When Ace is hit with darts, his shirt falls off his shoulder but in the next shot, it's back on.
Continuity mistake: Toward the end of the movie, the consul guy is running from the tribes for stealing the bat and he has a rip on his right shoulder. But in the next scene when he turns around to see the gorilla, the rip has vanished. In this same scene, when the ape opens it's mouth, you can see a shining piece of unpainted metal.
Answer: It is sung by Blues Traveler, covering the song originally written by Johnny Rivers (whose version of "Secret Agent Man" was used as the theme song for the Patrick McGoohan TV series "Danger Man").
Cubs Fan ★