Movie name where all the characters have the same name

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A long time ago I watched a trailer for a movie where there were multiple couples (different ages, genders) in different places or timelines, but all the couples share the same two names. The trailer said something like “This is ****” and then something like “This is also ****”. It was a romantic movie and I do believe it was french, but I can’t be totally sure. I’m certain that one of the couples was an old couple and the other was a gay couple, again, two characters shared the same name and the others two too.

I have been trying to find the movie for such a long time, but I can’t seem to located it. Tried to look a similar trailer, but so far I haven’t been successful. If anyone remembers something like that, I would be eternally grateful. Thank you.

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