SummerDocs, the seasonal documentary programming of the Hamptons Intl. Film Festival, has tapped a trio of films for its August lineup, starting with well-received Sundance alum “How to Survive a Plague.”

Sundance Selects’ “Plague,” a chronicle of the early years of AIDS epidemic from helmer-journo David France, is set for a Aug. 4 screening at Guild Hall, the East Hampton cinema that partners with HIFF for the SummerDocs series. France and RED Charity topper Deborah Dugan will participate in a post-screening conversation with SummerDocs host Alec Baldwin. (Film is set for an Sept. 21 release.)

Tribeca offering “The Zen of Bennett,” a look at the career and personal life of Tony Bennett directed by his son Danny, will screen Aug. 13, while “Ethel,” the Ethel Kennedy doc from her daughter Rory, is on tap for Aug. 31. Tony Bennett will appear with Baldwin following “Zen,” while Rory Kennedy will participate in the discussion after “Ethel.”

Hamptons fest is in its 20th year, with the next edition of the fest set to run Oct. 4-8.