Korean filmmaker Celine Song’s movie “Past Lives,” a modern romance about two childhood sweethearts who reconnect in New York City after decades apart, was awarded Best Picture by the National Society of Film Critics on Saturday. The A24 release was Song’s feature directorial debut, and beat out runner-ups “Oppenheimer” and “The Zone of Interest” for the top prize, reports Deadline. “Past Lives,” which also finished second in the Best Screenplay category, has already won Best Picture at the Gotham Awards and was named a Top 10 Film by the National Board of Review last month. The Society of Fil…