The Central Library, 1000 Fourth Ave., will present a free screening of the documentary “Undamming the Elwha,” which follows the journey of the Olympic Peninsula’s Elwha River, from the day it was dammed to the day it was “set free.” Information: www.spl.orgor (206) 386-4636

Northwest Convention of Intercollegiate Improv Saturday, April 21, 8 p. m. and 10:30 p. m.

The collegiate convention will showcase eight of the Northwest’s next generation of comedic performers, including the University of Washington’s The Collective. Wing-It Productions, 5510 University Way N. E. Tickets: $10/$14 via www.wingitpresents.com

photo courtesy of Theatre Off Jackson

Cherry Manhattan Presents: The Beyond-Real

Human Female Saturdays, April 21-28, 9:30 p. m.

Burlesque makes its debut at the sixth-annual Solo Performance Festival, which will also showcase a neo-burlesque cabaret featuring Fuchsia FoXXX, Jesse Belle-Jones, Diva le Deviant, Cherry Manhattan and Lyla la Coeur. Theatre Off Jackson, 409 SeventhAve. S. Tickets: $12/$15 via www.BrownPaperTickets.comor (800) 838-3006

Seattle Public Theater (at the Green Lake Batthouse Theater) will host a community potluck with the cast of the current production, starting at 1 p. m., followed by a performance of at 2 p. m. Audience members are encouraged to bring a dish to share. Tickets: $5 via www.seattlepublictheater.orgor (206) 524-1300

Book-It Repertory Theatre will present free dramatic readings from Amy Waldman’s “The Submission” for Seattle Public Library’s “Seattle Reads” program:

•Tuesday, April 24, from 7 to 8 p. m., at West Seattle Library, 2306 42nd Ave. S. W.

•April 30, from 7 to 8 p. m., at Green Lake Library, 7364 E. Green Lake Drive N.

•May 4, from noon to 1:30 p. m., at Central Library, 1000 Fourth Ave., Level 1, Microsoft Auditorium.