It's certainly very interesting.
I must admit I think a lot of the deeper meanings are lost of me, but it seems like it will likely be somewhat confusing to the average player. To the extent that's the point I guess that's fine then. (I have not seen the film, so I'm sure that would make a difference)
A few mechanical issues / suggestions:
I would include some indication that the player is hovering over a clickable button, and an indication that the button has been clicked. As it is, it feels awkward to click and not have confirmation that the button press was successful. Also, if it's possible for you to change the cursor, I would. The default cursor breaks the immersion, and the rest of the atmosphere is very immersive.
In the very beginning, I found the music a little too loud to hear the text. Having additional options to adjust the volume of effects or music would be helpful.
All in all, an interesting experience. I think it needs some additional feedback to encourage players to play more and seek more endings.
. . .
One final note - I have no idea what the organizer's stance on the use of AI to generate imagery for these projects is, but hopefully they will clarify that in the future to the extent it becomes relevant.
Thanks for making this. I was really impressed by some of the transitions.