" A science fiction film, produced in the mid-20th century (likely between the 1950s and 1970s).
In color, not black and white.
The entire plot takes place inside a modern and advanced (for its time) scientific laboratory.
The science team wears tight-fitting, colorful outfits (including green, red, and possibly other colors).
What happens to the scientists is filmed continuously, but the movie is not in a documentary style.
The team faces various dangers, including a flood of black substance near the end.
The ending reveals that the scientists are merely characters inside a child’s game.
Note:
It may not be very well-known, and the language I saw it in at the time was English.
+Edit:
The story revolves around a group of people (perhaps scientists) in an enclosed place, facing strange and mysterious events throughout the film. Every time one event settles down, an even stranger one appears.
The focus is mainly on a man and a woman from the group, who survive until the final scene - where a great flood sweeps through the entire place. They remain on a high spot within this enclosed area (perhaps a table).
In the end, it is revealed to the audience that all of this was imaginary - a story created from children’s toys, and we realize that the whole movie was perhaps the imagination of a child playing with their mother (possibly).
The dangers are almost continuous throughout the movie. It’s really strange how one danger ends and the next one starts immediately after the first one is over. They are a team facing dangers, and in the end, only the man and the woman, who love each other or fell in love with each other during their adventures in this closed environment, remain.
I remember one of the dangers was that the woman, or one of the team members, turns out to be a robot, or becomes a robot, or is transformed into a robot, and the people around them are surprised by that.
It’s a movie I watched over 20 years ago with my family when I was still a child, and I still remember these details until now. But I really would love to watch it again.
I also remember that there was an external threat that was the reason they were trapped inside this place. Maybe it was a devil-like character or something, I’m not sure. In the end, it is revealed to us, the viewers, as I mentioned earlier, that this is just someone’s imagination and not actual events."
