I don't know the "technical word" or category or kind of films where there is only one timeline but the story is told in two or more films.
The films have exactly the same timing such that you can play one in one TV and another in another, and they show the same timeline. One shows the life of one character and the other the life of another. Sometimes the films show the same situation.
I remember two films (but sorry I don't remember the titles). They were European romantic films which showed simultaneously the same plot but one with his perspective and the other hers.
I remember that some European TV channels streamed these films at the same time in two channels and you could change the channel and see the same timeline. I recall that these films were not Spanish, maybe they were French or Belgian.
I was looking in the English wikipedia about interactive films or something like that, because I think there are few films of this "unnamed category" but I don't know the "word".
What is the term for this kind of movie making.