During the romp, Henry is seen throwing burning candles while standing next to a totem-pole. Cut to Michael Nesmith, dressed as a Keystone Kop surrounded by thrown candles, standing against the wall next to the same totem-pole.
When Mrs. Weatherspoon and Boris are in the Monkees' upstairs bedroom, Boris is seen in close up and behind him the railings of the downstairs common room are visible. The same shot is used again during the romp, when Boris is actually downstairs.
Several close-ups of Boris are flipped. Notice his scar is over his right eye instead of his left; his buttons are on his left instead of his right and his earring, which should be visible in his left ear, is not there.