During her performance as Charlie Chaplin, Lucy takes celery from a passenger's tray full of food still on his tray table. Later during the same performance, the food disappears and the tray table is in an upright position, allowing the passenger access to the aisle to leave with all the other passengers during "When the Saints Go Marching In."
Several times during their final performance for the passengers, when Lucy and/or Carol enter or leave the cabin to go "backstage," the curtain opens or closes for them, despite their being no other flight crew or passengers to operate it.