When the Muppets form a human chain from the skylight, Fozzie Bear is shown sitting on the edge of the skylight with his feet dangling. However, in the very next shot, he is at the bottom of the chain, at eye-level with the crooks.
In the final sequence, the Muppets are shown in a two-deck airliner; with a passenger section (Statler and Waldorf) and a baggage deck (with the rest). But the plane shown from outside is a single deck parachutist's plane.
At the end when the crewmember of the plane starts throwing the Muppets out one by one, none of the Muppets he is shown throwing out have parachutes on their backs, then the next shot show chutes opening up with no Muppets attached to them.