Okay, the shot where the camera is aimed at the shower head with the water streams going by on all sides? How do they do that? You know, film that without getting the camera noticeably wet?
There's about a 2 ft diameter annular spray on my 1950s shower head, so I'd just shoot from floor level (or farther) with a long lens. The lens aperture itself isn't that large with 16 mm film, so you can probably sneak it in between streams in other spray patterns.
Really great montage. I'm not going to deduct any stars.. I mean come on, there are probably hundreds more they could've used. I don't blame them for omitting them.