A Richard Curtis (Love Actually, Bridget Jones's Diary) rom-com on this list is obligatory, of course. Tim Lake (Domhnall Gleeson) discovers that the men in his family can time-travel, so he uses this power to his advantage when he finds love with Mary (Rachel McAdams). In addition to Tim's romantic farces, we also see how this power affects his family life. This is a tearjerker for sure, so be sure to keep an arsenal of tissues nearby while watching it.