I don't particularly get on with Romantic Comedies, preferring, as is my bent, to eat my own face. However, much to my own chagrin, there sometimes comes along a romcom so utterly beguiling I find it hard not to fall in love with it. It might be the perfectly adequate Easy A made wonderfully palatable by the charming Emma Stone, or the delightful Along Came Polly, saved not only by some great performances, but by John Hamburg's genuinely witty screenplay. 500 Days Of Summer is such a film. Yes, it's gratingly smug with its quirky approach and knowingly all-too-cool soundtrack, and the central premise of boy-meets-girl doesn't have enough meat on it to provide much of a hearty cinematic repast, but it's the undeniable chemistry between its stars that engages. The success of the film rests on the credibility of the central relationship (much in the same way the decidedly mediocre The Adjustment Bureau did a few months ago) in this case, between Joseph Gordon-Levitt's Tom and Zooey Deschanel's Summer. The pair bring a recognisable sense of levity and naturalism to what I suspect are slightly underwritten characters, but no matter; we follow them through 90 minutes and 500 days, willingly setting ourselves up to follow them ride out every emotional peak and trough, and for a romcom, that's quite a feat.