When Doc takes the bottle from the kitchen cabinet, inexplicably there is no knob on the left hand door. When Lola opens the cabinet to check on the bottle, the knob is there and she uses it to open the same door.
When Doc is pouring orange juice for the teenager, he grabs her right wrist and pours juice into the glass as she holds it, but in the long shot he has taken the glass from her and fills it himself before returning the glass to her.
When Doc kisses Lola after lecturing her about spying on the teenagers, his right arm dangles limply as Lola grasps his upper arm. A split second later, it is he that has grabbed Lola's arm and holds her by the upper arm.
When Burt Lancaster comes home, the boarder's sweater is lying on the newel post at the foot of the staircase. He puts his hand on it. When he come back down to the kitchen, and back up again, it's no longer there.