“The following is a work of fiction. Any resemblance to persons living or dead is purely coincidental. Especially you Jenny Beckman… Bitch.” With that, a certain contender for one of the year’s best films (so far) disconnects from the patently absurd formula of contemporary romantic comedies and plugs itself into a relevant reality. As the tag line suggests –in one of the best cases of honesty in advertising film has ever seen– (500) Days of Summer is not a love …