Attack of the Giant Gila Monster (1959)

For most of the HOT ROD flick the cast dances around the possibility of any unusual life forms until the father of a boy who went missing early in the film insists that there could be a huge lizard out there, giving reasoning which makes absolutely no sense at all. He insists that a giant lizard could easily live out there for years unnoticed, get this, in the "underbrush." Well, maybe he just didn't understand the scale he was talking about, because given the size of the car that crashes into it at the end of the film, this lizard living in "underbrush" was probably a good 60 feet long. But even without having seen the thing, is "underbrush" the kind place where something big enough to push cars sideways could hide? I 12 inch salamander played the monster in this 1959 masterpiece.