When 'Jonathan Hart Jr' is in bed and Max is telling him the alternative Robin Hood tale, his pillow is a dark red colour. Later that same night when Jonathan & Jennifer come in to see him the pillow is a lighter creamy colour.
The first time Jonathan, Jr. is taken to the zoo, as Jonathan and Jennifer approach the camel enclosure, they are holding hands. In the next shot, her left arm is around his waist, his right arm is around her neck, without having been seen making the change.