Revealing mistake: When Neil imagines himself turning into the Hulk, he throws the other three characters to the ground. When Mike is thrown, just before the shot cuts to him landing on the ground, the ground can be seen bending inwards when Mike's foot touches it, revealing it to be fake. (00:05:13)
Revealing mistake: When Vyvyan is hitting Rick with the cricket bat, it wobbles when he swings it, revealing it to be a rubber prop. (00:07:15)
Revealing mistake: When the bus falls off the quarry, there appears to be an open door next to the driver's seat, presumably so that the stunt driver can jump out of the bus before the crash. (00:33:45)
Revealing mistake: When the bus explodes, an explosive charge can be seen on the ground beside the bus just before the explosion. (00:34:01)
Revealing mistake: After Mike burns the stumps (aka Rik), the special patch that was set on fire on the back of Rik's overalls is visible.
Chosen answer: It wasn't referring to anything real, just that the government's bureaucratic naming, The Guardian's mangled spelling or Rick's bad pronounciation resulted in the unlikely word "Footumch" being spoken.
Sierra1 ★