During the segment of the film titled "Ventriloquist's Dummy", when the dummy is sitting and talking with Mr. Kee, its hand changes position from the table to Kee's knee.
Right after Parratt says "gentleman", there's an immediate cut to a shot where he's put a hand to his face.
As Peter Cortland stands looking into the mirror his wife-to-be has bought him, the stripes on his tie run from his left side down to his right. A reverse shot shows the stripes on his tie running in the same direction; obviously, this is not a mirror image.