Immortality

The shots that worked for me are as follows:

Minsky 3A - 8/11/1970

- This particular scene has 3 different pieces of art, feel free to go down the rabbit hole with using image mode on them!

Minsky 11B - 8/16/1970
Minsky 34B - 8/27/1970
Ambrosio 6B - 8/15/1968

The achievement description will likely provide enough context to figure this out once you are familiar with how the game works but for the record I will give a (not so!) brief explanation.

While watching any of the clips in the game you can go into Image Mode using the Y button on default Xbox controls, which don't seem able to be changed. When in image mode your cursor will turn into a small circle. If you move the circle onto a person or item in the scene that leads to another clip a little eye symbol will appear in the circle and you can click with the A button to view a different clip.

Many of the scenes have pieces of art such as paintings and sculptures. It would seem this achievement is for clicking on 4 pieces of art in Image Mode.

I'm not sure if it has to be 4 different pieces of art, or if the same painting or sculpture clicked on in different scenes at the same location will count as 2 or more pieces of art. Also not sure exactly what qualifies, there are items like bracelets and necklaces and earrings in the game as well and I could see those being considered art for the purposes of this achievement. I don't really recall what I clicked on to unlock this so can't really narrow it down. No matter what actually counts it shouldn't be hard to find 4 pieces of art as there are a lot of them in the game, particularly if you've started finding scenes from Minsky, one of the fictional films featured in the game.