chunk: After being harassed by his mother into going to the Stardust Ballroom one Saturday night, Marty connects with Clara (Betsy Blair), a plain schoolteacher who is quietly weeping on the roof after being callously abandoned at the ballroom by her blind date. They spend the evening together dancing, walking the busy streets, and talking in a diner. Marty eagerly spills out his life story and ambitions, and they encourage each other. He brings Clara to his house, and they awkwardly express their mutual attraction, shortly before his mother returns. Marty takes her home by bus, promising to call her at 2:30 the next afternoon, after Mass. Overjoyed, he punches the bus stop sign and weaves between the cars, looking for a cab.