
Laurel and Hardy, Hal Roach, released 26 January 1929. Two escaped convicts have put on each other's trousers; they duck into a construction elevator to swap and rise to an unfinished skyscraper. Twenty minutes of dropped pants, a crab in a seat, and a walk along open steel, directed by Leo McCarey. The high work used a real downtown Los Angeles frame, with a platform just out of shot. The gag is not the height. It is that they still cannot get the trousers sorted.
Two convicts in each other's trousers on an unfinished skyscraper. McCarey climbs into Lloyd's territory and keeps the joke on the ground: the height is real, the problem is the pants. Watch the crab.