I watched this movie on the Sundance Channel, it was a Finnish Movie I think, and it was about a photographer who was in his 20's probably and he had a girlfriend. In the beginning, they are doing things, blah blah blah, and then they are on a subway and she slips a paper in his pocket that says she loves him; she was telling him she loved him, but he didn't make her know it. When they were getting on the subway he stopped to look at this street performer in the station who was levatiting a lit cigarette and he saw this other woman, that women also was on the samw subway as the man and his girlfreind. He left his girlfreind during the ride and followed the other woman out, and then followed her to a bar and then they slept together at her hotel room. Before that the woman's husband went out to aparty for the night. The next morning he is leaving before she is awake, but then stays until she wakes up, and he leaves a note of when to meet him next. He also leaves a lighter for her, but her husband comes back and see the bed unmade and his letter, but leaves before saying anything. The woman comes back out and fixes everything, and hides the note, and the man comes back, and it was a really weird story, I think that the man who came back from the nigth, was writing a book during the movie, and the book was the movie, but maybe not. Anyway, then when the photographer goes home, his room isn't there and no one remembers him, not his best friend or his father, or his girlfriend. But the woman remembers him, off and on though, like they see each other and are going to eat, but then she leaves to use the restroom before they eat and she comes back and asks to sit next to him lik they never met, and I didn't see the ending, so this is why I am asking, I really liked it, I think it took place in Helsinki, so this is why I think its Finnish, but it Scandinavian for sure.

PLEASE HELP ME

I still can't figure out the answer to this movie, but it looks like someone else is also searching for it on another site, so here are more details:

"a subtitled film, possibly French but definitely European, a man is on a train with his girlfriend and spots another woman. He decides to follow her and spends the night with her. In the morning, no-one recognises him and his apartment no longer exists. He realises his mistake and tries to get back with his girlfriend. His girlfriend and the woman on the train are played by the same actress.2003-2004CinemaIndie releaseMay have been black and whiteSubtitled"

Sounds like Reconstruction (2003)

Thanks, mate.

No problem, I haven't seen it but it looks like one worth checking out.