Political PioneersThe Sag Harbor Cinema Arts Center’s Present Tense series will conclude with a free sneak preview of “Knock Down the House,” a new documentary about four working-class women who ran groundbreaking campaigns for Congress in 2018, on Saturday at 6 p.m. at Pierson High School in Sag Harbor. Directed by Rachel Lears, the film, which will be released on Netflix and in theaters on Wednesday, won the Audience Award for best U.S. documentary at this year’s Sundance Film Festival.“Knock Down the House” followed the campaigns of Alexandria Ocasio-Cortez, a bartender from the Bronx who defeated a powerful incumbent Democratic Congressman; Paula Jean Swearengin, a coal miner’s daughter from West Virginia; Cori Bush, a nurse, pastor, and activist from St. Louis, and Amy Vilela, a Las Vegas mother who lost her daughter to a brain clot when a hospital refused to treat her because she didn’t have health insurance.Classical PianoThe Montauk Library will present “An Afternoon Salon,” a free concert by the classical pianist Paul Verona, on Sunday afternoon at 2:30. The recital will feature works by Chopin, Isaac Albéniz, and Beethoven.An alumnus of the Bologna Conservatory of Music, the Juilliard School, and the Manhattan School of Music, Mr. Bologna has performed as a solo concert artist and as a soloist with symphonies throughout Europe and the United States. His repertoire focuses on the composers of the Romantic period, among them Chopin, Schumann, Brahms, Rachmaninoff, Liszt, and Albéniz.Michelle CannThe Southampton Cultural Center’s Rising Stars piano series will feature a performance by Michelle Cann on Saturday at 6 p.m. The program will include Ravel’s Piano Concerto in G, Gershwin’s “Rhapsody in Blue,” and a work by the late African-American composer Florence Price.Ms. Cann has appeared in recital and as a chamber musician throughout the United States, China, and South Korea and has performed with the Los Angeles Philharmonic, the New Jersey Symphony Orchestra, and the Cleveland Institute of Music Symphony Orchestra, among others. A resident of Philadelphia, she is active in creating opportunities for music education among residents of underserved communities.Tickets are $20 in advance, $25 at the door, and free for students under 21.