Other mistake: Sally phones Harry while he is staring at a dipping bird. She tells him that Casablanca is on TV, and he specifically asks for the channel. "Channel 11," she says. When she says "Last scene" later, you can see on the display of Harry's TV set that he's tuned to channel 07. (00:35:30 - 00:37:40)

When Harry Met Sally (1989)
1 other mistake - chronological order
Directed by: Rob Reiner
Starring: Meg Ryan, Billy Crystal, Carrie Fisher, Bruno Kirby
Continuity mistake: When they are playing win, lose, or draw, Sally is trying to draw baby talk, and if you keep your eye on the drawing the baby looks different all the time and has eyes, and then doesn't have eyes, etc. (01:04:15)
Marie: I don't think he's every going to leave her.
Sally Albright: I know he's never going to leave her.
Marie: You're right, you're right. I know you're right.
Trivia: When they are in the museum and Harry says "For the rest of the day, we are going to talk like this...", the last thing he says is ad libbed. "But I would be proud to partake of your pecan pie." is not in the script. You can see Meg Ryan look off-camera at the director and say "Oh, no" but she continues with him. It's obvious that she wasn't expecting it. [This is confirmed as true in the documentary on the DVD.]
Question: When Billy and Meg are leaving from the college campus, Meg barely talks to Amanda. They only say a quick hello. I realize Amanda is enamoured with her boyfriend, but the girls don't even act like they know each other, and when Meg drives off neither one of them say goodbye or wave goodbye, not even a smile or a look. I thought they were supposed to be friends?





Answer: Sally could be upset for having to drive Amanda's boyfriend, or it could be awkward because they don't know how to say goodbye. There could be a number of reasons why things appear tense between Sally and Amanda, just not explained.
That was a big question mark for me as well when I watched the movie, to the point that I had to re-watch the beginning because I was sure I had missed something; their behaviour doesn't make sense.
Sammo ★