“The New Tenants,” which won the Academy Award for live action short this month, will be among the 47 movies in the Tribeca Film Festival’s short film lineup, along with works directed by Kirsten Dunst, Domenica Scorsese and others, festival organizers said on Thursday. “The New Tenants,” written by David Rakoff (“Fraud,” “Don’t Get Too Comfortable”) and directed by Joachim Back, tells the darkly comic story of two men who meet their unusual neighbors as they move into a New York apartment; it will play on the festival’s Hard Core program. Other films announced include “Bastard,” written and directed by Ms. Dunst (“Spider-Man”), about a couple in a desert motel; “Roots in Water,” directed by Ms. Scorsese and written by Richard Nelson, about two siblings dealing with the death of their mother; and “A .45 at 50th,” a documentary directed by Joshua Bell and John Cromwell in which the actor James Cromwell (“The Queen”) recounts his experience with the Black Panther Party. The festival runs April 21 to May 2.