Audio problem: In the scene where Penny and Johnny are teaching Baby their dance routine you see Penny putting on a record, if you look closely you can see that Penny moves the arm to put the record on then right away you see her taking the arm away even though the music has started. Even if it's a directorial device for us to hear different music than they do, it's still a mistake because she's not actually put the record on, meaning they've not got any music playing.
Trivia: In the scene where Johnny and Baby are practicing dancing, and she keeps laughing when he runs his arm down hers, it was not part of the scene, she was actually laughing and his frustration was genuine. They left it because it was effective. Her falling over in this scene was unplanned too.
Trivia: In Dirty Dancing, the very famous scene where Johnny and Baby are practising their dancing and they are crawling towards each other on the floor, Swayze and Grey were really just messing around and were actually warming up to do the real scene, but the director liked it so much he kept in in the film.
Question: When Baby helps Penny out by dancing with Johnny at the Sheldrake hotel, it is stated that it is Thursday night (when Penny has the abortion). At breakfast the next day Baby's dad says they are leaving tomorrow, even though they are paid up til Sunday. Thursday night is the first night that Baby and Johnny sleep together, yet they seem to be seeing each other for ages before Johnny even gets sacked, let alone the time that's past when he comes back. I don't see how all of this be squeezed into 2 days?