When Suzanne speaks to the pianist before performing, "you don't know me", there is a clearly visible red tape mark on the ground to instruct her where to stand.
Lowell tells Suzanne that none of the airport scene can be saved because it was shot without any cutaways. However, the scene is obviously edited as the characters jump about 3 feet farther from the camera as they walk from past a pole between the ticket counter and the passport control desk.