OK, not a movie. I've been meaning to do this, so I finally did, reminded by the recent "flashing arrow" thread. This is a defunct T90 shutter that's been lying around in a box of parts for years. I took some photos this evening so everyone can see the infamous magnets. Photo 1: the entire shutter assembly. Curtains run in a frame about 3mm thick. The high-rise structure at the end is the charge and release mechanism. It houses what must be 100 different springs, levers, pawls, catches, shafts, gears, the two release magnets, and the switch for flash sync. The large lever that protrudes is operated by the motor drive at film advance to charge or cock the mechanism prior to exposure. The flex circuit on top carries five transistors, at least two of which would be drivers for the release magnet coils. The "tail" on the flex circuit wends its way up to the top of the camera, where five connections solder to the main circuit and I believe two to the hot shoe.