Sunset Blvd. (1950) - 11 mistakes

Visible crew/equipment: When Joe Gillis returns to the mansion, after Betty Schaefer has just revealed her love towards him, when he enters his room, you can see a hand wearing a watch in the mirror.

Continuity: Gillis is lying on his bed with the script pages all over the bed. Look closely and you'll see that they're all copies of the same page.

Revealing: When Gillis parks his car in Desmond's garage the crew and the 3 stage lights are reflected on the car.

Continuity: When Joe awakens after his first night at Norma's mansion, his shirt is un-tucked as he puts on his jacket to go outside. When he is running down the stairs in the next shot, his shirt is tucked in.

Continuity: When Gillis is seen floating in the pool, a photographer on the left kneels down twice to take the picture: First in the wide shot, and a second later in the closer shot.

Continuity: Gillis steps out of the pool, dries himself and then Norma Desmond helps him dry again. When the shot changes, his face is totally wet again.

Factual error: At the end of the movie, Joe Gillis is shot twice in the back and once in the chest before falling dead into a swimming pool. However, no blood from the wounds is ever seen in the pool, even after his body has been floating in it overnight.

Visible crew/equipment: Lightning equipment is reflected in Norma Desmond's glasses while she and Gillis are in the car, out on the road.

Continuity: Desmond throws a bunch of papers tied up with a string at Gillis. Shot changes to him catching them and the bundle is totally different.

Visible crew/equipment: Lightning equipment is reflected in Norma Desmond's glasses when she is drying Gillis by the pool.

Continuity: When Gillis enters Schwab's pharmacy, the wide shot for the exterior shows a man and a woman on the left of the entrance. In inside shots they are gone. When Gillis steps outside, the prior exterior shot is used and the man and woman appear again.