Marc Webb’s (500) Days of Summer is a charming and sophisticated romantic comedy featuring Joseph Gordon-Levitt and Zooey Deschanel as young people searching for love amidst the iciness and irony of modern Los Angeles. The film is enriched by its nonlinear structure in which the 500 primary days of the central duo’s relationship are told out of order. Gordon-Levitt is the revelation here as the greeting card writer who aspires to put his sunny solicitations to good use and ultimately his actual architecture skills to work in building a legacy. For a debut feature, Webb’s work is remarkably assured. It’s a funny valentine to being young and a bit confused, and the film’s unusual structure ultimately gives it the propulsive force that makes it move in its own distinctive and inspiring way.