When Louis and Johnny leave for the casino after showing her the new yacht, Johnny takes a number of steps walking out of shot. Next shot when Louis asker her to wait in the car she is right in front of him.
When Johnny finishes her vase on the pottery wheel, it is straight. In the next frame, the vase is slightly tilted. Then when Pierre picks it up and puts it on a shelf, it has a shine on it as if it has been glazed.