When the gangster is trying to buy Enwright from Ford, a bearded henchman walks in through a curtained doorway behind Ms. Enright, holding $20,000 to his chest. In the next shot he has been replaced by a beardless guy with no money.
When the man in charge of the underwater city ("New Angeles") bangs his fist on his desk there are the two long, thin lamps on his desk which are both bent inward toward the center of the desk. In the next shot, one of the lamps is tilted so that it's bent outward away from the center of the desk.
When Ford and Enwright are reading data from a port at the back of the assassin droid's neck, his head bent quite far down onto his chest. In the close-up of the back of his neck, his head is raised much further up as though he were sitting normally and awake.