> selective voluntary amnesia

I'm lucky (?) enough to have the involuntary form of this to some degree for media. I will often forget the plot points of a movie I've watched within days to weeks, and in many cases after a year I have completely forgotten ever even having watched it. I'll pick a movie, my wife will say "we've already seen that", I'll say "I don't think so", she lovingly puts up with me because she luckily likes re-watching movies, and even by the end of the show I'll have nothing but a vague sense of deja-vu the whole time.

I have on multiple occasions, rewatched movies with twist endings like The Usual Suspects and still been surprised on the second or third viewing.

I'd rather have my wife's photographic (videographic) movie recall though...

I wish that too. In particular, I'd like to wipe Mass Effect trilogy from my memories, at least temporarily. It had huge emotional impact on me, and I would love to relive it all again - unfortunately, I still pretty much remember the entire plot after the years (and though ME has some interesting degree of non-linearity based on your in-game decision, there's still too much of the plot that's constant to really enjoy a replay without a memory wipe).

You don't need amnesia to feel an experience fresh again. It's a matter of mindfulness. Sure, it takes some training. Someone who is present in the moment will always feel everything is fresh and alive.

Indeed. That's how I try to relive an experience of a great story, be it a game or book or movie. The best way though, is to replay it with someone else, who is new to it.