OPERA AT THE LIBRARY: 1:30 p.m. Charleston County Main Library, 68 Calhoun St. Free. Enjoy a filmed production of "La Boheme." 805-6930.
SEWEE SUMMER MOVIE: 11 a.m. Sewee Visitor and Environmental Education Center, 5821 U.S. Highway 17, Awendaw. The center will show two 30-minute nature films. Call 928-3368.
"BOYS OF SUMMER" FILM SERIES, "Casablanca": 8 p.m. Eye Level Art, 103 Spring St. $5, free to members. Beer and wine and pastries from Sugar Bakeshop and WildFlour Pastry will be available for purchase. eyelevelart.com.
RAIL LINE MEETING: 5:30 p.m., North Charleston City Hall, 2500 City Hall Lane. North Charleston City Council will hold a public hearing on its plan to promote rail lines capable of accessing the State Ports Authority's terminal on former Navy property at the city's south end. No advance registration to speak or address council is required.
BOOK SIGNING: 5 p.m. Barnes & Noble, 1812 Sam Rittenberg Blvd. Matthew Gavin Frank will be available to sign copies of his new memoir "Barolo." 556-6561.
MUSIC ON THE GREEN: 6-9 p.m. Freshfields Village Green at the crossroads of Kiawah and Seabrook islands. Free. Bring a blanket or lawn chair and enjoy Men of Distinction. www.freshfieldsvillage.com.
MANNERS WORKSHOP: 9-11 a.m. The Charleston Museum, 360 Meeting St. $20 members, $25 nonmembers. Lizz Ackerman of Southern Protocol will lead this Petite Protocol program designed to teach children to be polite and confident. 722-2996, ext. 236, or www.charlestonmuseum.org.
TENNIS BLOCK PARTY: 9 a.m.-noon. Family Circle Tennis Center, 161 Seven Farms Drive, Daniel Island. Free. The event will feature music, games, tennis drills, snacks, raffles and a complimentary cookout lunch. 856-7900 or www.familycirclecup.com.
GALLERY CLOSING PARTY: 6-9 p.m. Waterfront Art Gallery, 215 East Bay St. Will include music, art and food. 722-1155.
REGGAE CONCERT SERIES: 8:30-11 p.m. Wannamaker County Park, 8888 University Blvd., North Charleston. $8 adults, free to children 12 and under. Food and beverages will be sold. 795-4FUN.
'GIN AND JAZZ': 6:30 p.m. Pepper Plantation, 1145 Chandler Road, Awendaw. $40 singles, $70 couples. Theatre Charleston's season kick-off party will feature a "Roaring '20s" theme, live jazz, a speakeasy area, games, an open bar, costume and dance contests and more. 813-8578 or theatrecharleston.com.