Silent Horror Film
The German silent movie "The Cabinet of Dr. Caligari" centers on two murders in the small town of Holstenwall. The movie's title character is the director of an insane asylum, who falls under suspicion when he arrives in town the day of the first murder. Filmed in 1919, the movie was directed by Robert Wiene and written by Hans Janowitz and Carl Mayer. It was a forerunner of such psychological thrillers as Alfred Hitchcock's "Psycho" and Roman Polanski's "Repulsion." 7 p.m. Tuesday. St. John's College, 60 College Ave., Annapolis. Free. 410-626-2539.
Crab Days Festival
A celebration of all things crabby, with live music, boat rides, cooking demonstrations and children's activities, during this tribute to the blue crab. The menu includes crab cakes, crab soup and steamed crabs. Children can participate in activities such as human crab races, storytelling, crab tosses, finger puppet shows, arts and crafts, and face painting in the Kids Town Tent. The tent will include a touch tank (provided by the University of Maryland's Horn Point Laboratory) filled with horseshoe crabs and other touchable sea creatures. Adults can try their hand at various forms of crabbing, including trotlining and chicken necking. 10 a.m.-5 p.m. Saturday and Sunday. Chesapeake Bay Maritime Museum, Mill Street, St. Michaels. $10; members, free. 410-745-2916 or www.cbmm.org.
Children ages 2 to 5 can take a break from the heat for a day at the Chesapeake Children's Museum during "Get Wet Day." The museum plans water activities from 10 a.m. to 2 p.m. next Thursday. Kids can walk through the museum's wading pool and splash around with squirt bottles, tubes and siphons at the museum's water table and run through sprinklers. They will also learn how water makes waves by creating a "wave in a bottle" -- a plastic bottle filled with water, oil and food coloring. 25 Silopanna Rd., Annapolis. $3. 410-990-1993 or www.theccm.org.