Opera on screen Two simulcasts of classics at the Bryn Mawr Film Institute, 824 W. Lancaster Ave., Bryn Mawr:
From the Opera Royal de Wallonie in Liege, Belgium, Verdi's delightful comedy Falstaff, featuring baritone Ruggero Raimondi, at 1 p.m. Sunday.
From the Teatro alla Scala in Milan, Wagner's epic Das Rheingold, with bass René Pape, tenor Stephan Rügamer, and bass baritone Johannes Martin Kränzle, at 8 p.m. Wednesday.
Tickets are $25 for each simulcast. Call 610-527-4008.
Power politics Henry Kissinger is said to have once observed that academic battles are so vicious because the stakes are so small. In Katharine Clark Gay's 516 (five sixteen), a term-paper writer for hire is contracted by a grad student to do his work while he researches his thesis, and falls in love with him. When she betrays him to his professor, they find the truth of the diplomat's maxim. The Philadelphia Theatre Workshop production goes on at 2 p.m. Sunday at the Walnut Street Theatre's Studio 5, 825 Walnut St., and continues on a Thursday-through-Sunday schedule to June 6. Tickets are $20. Call 215-574-3550. . . . In the dark comedy Leaving, the first play in 20 years by the esteemed writer and former Czech president Václav Havel, a deposed politician finds that the sudden absence of power allows the personal to rush in. The show goes on at 2 p.m. Sunday at the Wilma Theater, 265 S. Broad St., and continues on a Tuesday-through-
Sunday schedule to June 20 (no show June 8). Tickets are $22.50 to $55. Call 215-546-7824.
Democratic ideals The acclaimed author and philosopher Martha Nussbaum has written about ancient thought, feminism, political philosophy, and ethics. In her new book, Not for Profit: Why Democracy Needs the Humanities, she makes the case for the liberal arts as the underpinning of democracy. Nussbaum discusses her work at 7:30 p.m. in the Free Library's Montgomery Auditorium, 19th and Vine Streets. Tickets are $14; $7 for students. Call 215-686-5322.
Traveling band On their way to a Barcelona music festival from the musical hotbed of Athens, Ga., the garage-rock collective Nana Grizol stops off to display their ragged-but-right indie aesthetic at 7 p.m. at Magic Garden, 1020 South St. Tickets are $10. Call 215-733-0390.
Fanciful kingdom In her intricate, highly textured paintings, Susan B. Howard creates humorous narratives between imaginary creatures. An exhibition of her work is at Projects Gallery, 629 N. Second St., to Saturday. Admission is free. Call 267-303-9652.
Dream girl Taking a break from her band the Jealous Girlfriends, Holly Miranda resumes her solo career with her new CD The Magician's Private Library, a winning collection of swirling, mystical dream-pop. She plays at 8 p.m. at Kung Fu Necktie, 1248 N. Front St. Tickets are $10. Call 215-291-4919.
Cowboys vs. dinosaurs We dig Avatar, but the oldies still resonate. Featuring special-effects genius Ray Harryhausen's stop-motion creatures, the 1969 fantasy classic The Valley of Gwangi is about rodeo riders who find a lost valley filled with dinosaurs in Mexico, circa 1912. Once you've seen the cowpokes rope an allosaur and haul it back to town in a rickety cart behind their horses, you'll believe. The Secret Cinema screens the film at 7 p.m. at the American Philosophical Society, 104 S. Fifth St. Admission is free. Call 215-440-3442.
Eclectic music Conductor Charles Dutoit leads the Philadelphia Orchestra in a wide-ranging program featuring Bright Sheng's The Phoenix, with soloist Shana Blake Hill, soprano; Rachmaninoff's Piano Concerto No. 3, with soloist Nikolai Lugansky; and Mozart's Symphony No. 39 in E-flat Major. The concert is at the Kimmel Center's Verizon Hall, Broad and Spruce Streets, at 8 p.m. Thursday, 2 p.m. Friday, and 8 p.m. Saturday. Tickets are $10 to $130. Call 215-893-1999.
Friday & Saturday
Scary funny One of the lesser-known of Gilbert and Sullivan's works, Ruddigore is a spoof of melodrama featuring a cursed baronet, a virtuous heroine, ghosts, disguises, and some great music. The Savoy Company performs the work at the Academy of Music, Broad and Locust Streets, at 8 p.m. Friday and Saturday. Tickets are $10 to $55. Call 215-735-7161.
Go outside At last, it's time for the outdoor concert season to begin. The divine Susan Werner opens the Bryn Mawr Twilight Concerts series at Gazebo Park, 9 S. Bryn Mawr Ave., Bryn Mawr, at 7 p.m. Saturday. Tickets are $10. Call 610-864-4303.
Dance team Local troupe Anne-Marie Mulgrew and Dancers and Washington's Human Landscape Dance perform works by Mulgrew and Malcolm Shute at the Painted Bride Art Center, 230 Vine St., at 7:30 p.m. Saturday and 3 p.m. next Sunday. Tickets are $20; $10 for seniors and students. Call 215-925-9914.