1 Work in The First Wives Club (1996)
As she stepped outside, Cynthia looked up at the window of a nearby penthouse. Exercise Girl was working out again. Granted, her exercise machine (stairstepper? treadmill? Cynthia wasn't close enough to see) was in the window, so that was the only thing Cynthia was likely to see her doing, but still.
Exercise Girl looked at Cynthia, giving her a cheery wave. God, perky people were revolting.