When Larry Delavane arrives home drunk as Adam Niles is babysitting his kids, the headlights on his car are covered with paper to prevent reflections from the camera lights.
After Niles tells Rosemary he will sleep on the couch, she shuts off the lights and goes back to bed. Then, when she sits up, another light inexplicably and very noticeably comes on to more fully illuminate her.
When A.J.'s publisher calls him, he claims it's 12 noon eastern time in the U.S. If this were accurate, then it would be 6:00 p.m. French Riviera time, and therefore, A.J.'s balcony would be bathed in golden light, not early morning sunshine sunshine.