Multiple Mirror Effects in Movies

Point Blank (1967)
Spoiler Alert !

Some of these pictures and descriptions may give away plot details that you might not want to know before watching the film.
 
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In this great classic crime thriller, Mal Reese (John Vernon), Walker (Lee Marvin), and his wife Lynn (Sharon Acker) rob the cash from a drug deal taking place at the stupidest only-in-a-movie location ever - the recently-abandoned prison on Alcatraz Island in the San Francisco bay, which is isolated but still in plain site of the police, especially with all the boats going to and from the island, not to mention the helicopter.

After Reese kills the couriers and gets the cash he shoots Walker leaving him for dead, and runs off with Lynn. Somehow, and this is even crazier than the location, Walker manages to swim to shore from Alcatraz while full of bullet holes. Because of that along with the strange atmosphere of the film, there is a theory that Walker is a either a ghost or the film is his dying fantasy. Some undisclosed time later we see Walker talking with a cop who wants his help in finding Reese and his organized crime organization. The cop gives him Lynn's address in Los Angeles and tells him Reese lives there with her. Walker storms off to get revenge and his share of the money.

Then at about 10 minutes into the film we see what is called the "Walking Walker" montage. We see Walker walking down a long corridor at the airport, his footsteps so loud they could be gunshots. Then we see shots of him walking or driving in a car juxtaposed with shots of Lynn in bed, doing her makeup, getting dressed, in a hair salon, then walking into her apartment. The very brief mirror shots show up at about 10:40 when we see Lynn sitting under a hairdryer in the salon wiping some white stuff off her face as she and the other woman are reflected in mirrors that make an infinity mirror.

You can watch just the Walker Walking montage on YouTube, including the mirror shots and the action that follows, but it's definitely worth watching the whole film if you can find it.