5. (500) Days of Summer (2009)

Men everywhere found themselves wanting to buy the actor a pint after his hilarious and sensitive performance as the lovelorn Tom in Marc Webb's masterful romantic dramedy (500) Days of Summer. Again opposite Deschanel, the perfectly-matched leads work their way through a tremendous script, which delivers more honesty, humour and emotion in 95 minutes than the majority of the genre has in the intervening years since Woody Allen's inscrutible
Annie Hall. The actor was admittedly in a slightly more beneficial position than his co-star, for while the film aims to try and be a little ambiguous, viewers are guided somewhat to root for his sweet underdog - given that he is the one rejected, and no, that's not a spoiler - while Deschanel's actions are percieved as a little cold and stand-offish. All-in-all, it's the chemistry that makes the blinding script work, and the film helped demonstrate Gordon-Levitt's versatility; indeed, he could be the romantic lead pinned up on girl's walls, or at least more so than before.