There is this romance movie were a guy crosses the street to get to a girl whose waiting with a basket or something, when the guy crosses he almost gets runned over by a car, and then says "just go"
And at the end he throws stickers of off the roof or something
Hope you guys understand what I wrote and can help me
Thank you

This is the first movie that came to mind:
Happy Accidents (2000)
Starring Marisa Tomei, Vincent D'Onofrio
IMDb synopsis:
Ruby Weaver has man trouble: She tries to fix them, so she's stuck herself with a string of losers. Her current lover, Sam Deed, seems different: he's sweet, tender, just in from Dubuque. But, as Ruby tells her therapist about Sam, in flashbacks we see someone not quite of this world. In fact, Sam informs Ruby that he's from the future, 2470 to be exact, traveling back in time to avoid prosecution for his sister's death and to find Ruby, whose photo he saw back home. Ruby's sure he's delusional, but most of the time she wants to keep him and maybe fix him. Although he seems sane, maybe Sam hasn't told her the real story. What's he up to, and who is Chrystie Delancey?

IMDb review excerpts:
1) The viewer has to decide whether the main character actually was what he claimed to be or just crazy. As the events unfold, most of us decide that he really is a back traveler, for several reasons. First, he appears to know that she will die on a certain day, at a certain intersection in NYC, run over by a taxi driver. Second, he meets up with someone he claims he recognizes from 2469, who must have back traveled a year earlier. And third, it appears near the end of the film that Tomei's shrink is also a back traveler.

2) In spite of his warnings, she leaves the apartment and is about to cross the street at the fatal intersection. He gets there and, as the speeding car is about six inches from mowing her down, he is able to back travel for a few seconds, just long enough to clear the path and save her.

Happy Accidents (2000) - IMDb (http://www.imdb.com/title/tt0208196/)