Focus on Caddies“Loopers: The Caddie’s Long Walk,” a documentary that explores the complex bond between a golfer and a caddie, will be shown at Guild Hall on Saturday at 7:30 p.m. as part of the Hamptons International Film Festival’s Now Showing series.Directed by Jason Baffa and narrated by Bill Murray, a onetime caddie who played the gopher-obsessed groundskeeper in “Caddyshack,” the film was shot on the iconic courses of Pebble Beach, Augusta National, St. Andrews, Carnoustie, and others. It illuminates a number of famous caddie-golf pro partnerships as well as the rise of a Bel Air Country Club caddie from East Los Angeles who ultimately played in the Masters. Tickets are $15, $10 for members.Female Composers“Hear Her Song — Celebrating Female Composers and Lyricists,” a free performance by Valerie diLorenzo, a singer, and Amanda Borsack Jones, a pianist, will take place on Sunday at 2:30 p.m. at the Montauk Library. Ms. diLorenzo, an award-winning cabaret artist and professional actor, will perform songs by Lynn Ahrens, Carole Bayer Sager, Dorothy Fields, Marilyn Bergman, Betty Comden, Carly Simon, and Carol King, among others.Beyond Bossa Nova“Bossa Nova and Beyond!” — a concert by Nilson Matta’s Brazilian Voyage Quintet — will take place at the Southampton Arts Center on Saturday at 7 p.m. A pioneer in the art of playing Brazilian jazz on acoustic bass, Mr. Matta, a Grammy nominee, has performed with such renowned musicians as Yo Yo Ma, Joe Henderson, Nancy Wilson, Herbie Mann, and Gato Barbieri.He will be accompanied by Helio Alves, piano, John Snauwaert, saxophone, Marcello Pelliteri, drums, and Debora Watts, vocals. Tickets are $20, $15 for SAC friends.Perlman ProgramsThe Perlman Music Program’s 2019 Chamber Music Workshop will begin with a free performance by young artist participants of works by Beethoven, Haydn, Mozart, and others at the Clark Arts Center on Shelter Island tomorrow at 7:30 p.m. A reception will follow the recital.“Tutti Suonare (Everyone Plays),” a Perlman tradition, will bring together the program’s faculty and students for a concert next Thursday at 7 p.m. at the center. Tickets are $36 and include a reception after the performance. Writers and ArtistsThe Barnes Landing Association’s annual Anna Mirabai Lytton Writers and Artists Showcase will take place on Saturday afternoon from 2 to 3:30 at the association’s meetinghouse at Barnes Hole and Water’s Edge Roads in Springs.The event will feature brief readings, artwork displays, and performance art by Francine Whitney, Michelle Murphy Strada, Dee Slavutin, Kate Rabinowitz, Harriet Oster, Valerie King, Suzanne Ginsberg, Laura Jasper Marzzulla, Hal Hellerman, Susan Friend, Rameshwar Das, and Lisa Dickler Awano.The program is named in honor of a community member, student, and young writer who died in 2013 in a traffic accident.