Directed by: Richard Donner
Starring: Bill Murray, John Glover, Karen Allen, John Forsythe
Question: When Frank travels into the future and sees an older Calvin sitting on the floor, Calvin glances up. Did Calvin see Frank?
Question: What are the girls doing when they throw Grace's son onto the kitchen floor? Why are they harassing him, and why is their grandmother enjoying it so much?
Answer: They are blowing a 'raspberry' on his bare belly, just good-natured teasing of a younger sibling.
Continuity mistake: After Claire hits Frank in the head with the door, she kneels down to help him up, and she has no purse. In the next shot she has a brown purse in plain sight on her left shoulder.
Lou: I don't mind you hitting me, Frank, but take it easy on the Bacardi.
Trivia: Frank's brother James is played by Bill Murray's younger brother John. His father is played by Bill's older brother Brian Doyle-Murray.
Answer: It's a vision, not reality, so one could interpret it either way. I think it's more powerful if Calvin is seeing Frank, silently accusing him of being (at least partially) responsible for his (Calvin's) situation.