Visible crew/equipment: The reflection of a white sleeved cameraman is visible over the brown paper when Marvin, Phil and Charlie are looking into the window of Final Frontier.
Visible crew/equipment: In the Cotton Candy Puffs scene, there are two shots of a TV in the corner of the room, and in each of them you can see the cameraman's reflection.
Visible crew/equipment: Early in the film, when the little kid Ben is brushing his teeth, equipment is visible in the glass behind him.
Answer: When the kid goes up to Marvin and talks to him, he says "Klingo Mach" or something. That means "you speak Klingon?" Then the kid says "Egchad" which means "yes". That thing with the hands means hello or goodbye depending when you use it.