Not a movie but a classic sitcom (I assume in the US also) Absolutely Fabulous has a good one. The episode where the kitchen burns down: Eddie and Saffy descend into the kitchen, fearful that Patsy may have died in the blaze.
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Not for a person, but a thing: in Hitchcock’s Family Plot
they hid the stolen diamond by hanging it in the crystal chandelier
There’s an old Hawaii 5-0 episode where a stolen painting is hidden in a hotel room by putting in the generic hotel room wall painting. They search the room and the thief grabs the frame off the wall and holds it in front of McGarrett. You can see the frame separate and the stolen painting is apparent but the audience (and McGarrett at first) just think it’s a cheap hotel room painting.
I guess this thread is inherently spoilery, so I’ll jump right in.
In the 1975 Dario Argento film Deep Red (Profondo rosso), the protagonist investigating a murder is in the victim’s apartment, which has many grotesque and surreal portrait paintings on the walls. He looks in a wall mirror and sees several painted faces on the wall behind him. Later in the film, he looks in the mirror again and realizes that one of those faces is now missing. Turns out the killer had been standing behind him the first time.