Opening Friday: Over the next two weekends James Sewell Ballet will celebrate 20 years of making work that blows up expectations about what ballet — and contemporary dance — can be. The program includes a retrospective of JSB repertory favorites: “Jacket,” “Swan Pond” and the last movement of “In Counterpoint” (pictured, with Eve Schulte). Also on tap is “Outerborough,” a new project created by Sewell with composer/violinist Todd Reynolds, plus New York-based choreographer Lar Lubovitch’s stirring “Concerto Six Twenty-Two” (1986), featured on the program to mark equal marriage rights for all Minnesotans. And in honor of the spooky season, a family matinee offers a Halloween parade for kids in costume. (8 p.m. Fri.; 11 a.m. & 8 p.m. Sat.; 2 p.m. next Sun. 8 p.m. Nov. 1-2; 2 p.m. Nov. 3. $20-$36. Cowles Center, 528 Hennepin Av. S., Mpls. 612-206-3600, www.thecowlescenter.org.)