Corrected entry: Harry and Sally are talking to their respected friends (the split screen scene) about how they just had sex, in Harry's split screen is a mirror. Watch in the reflection as a crew member walks by as if nothing has happened. He actually walks by twice, in different directions. The film's director Rob Reiner walks by carrying some equipment seconds later. (01:13:55 - 01:14:20)
manthabeat
5th Mar 2010
Correction: Harry is in a public place using a public phone. The scene implies that both Harry and Sally have called their friends right away after Harry leaves Sally's place. The type of phone Harry uses, plus the mirror to see the people passing by helps reinforce this theory, and thus the rush of his call. Seeing passers by in a mirror (even if they're cameos by members of the crew) fits the scene.