What's Your Number? (2011)

In this romantic comedy starring the chemistry-rich duo of Anna Faris and Chris Evans, the story of Ally Darling, a woman who decides to track down her ex-boyfriends to see if one of them is worth getting back together with. In the process, she gets the help of her neighbor, Colin Shea, a womanizer who agrees to help her find her exes in exchange for using his apartment as an "escape" from his own amorous encounters. With an irreverent and funny tone, the film moves between irony and tenderness.