The musical comedy "Once Upon a Mattress, weekends through Sept. 21 @ McKeesport Little Theater; $15 (412-673-1100).

If you haven't seen summer box-office headliners "The Dark Knight" and "Tropic Thunder," this might be the week -- before the big boys of fall march in. (See Friday.)

Film Kitchen, a monthly showcase of regional films, celebrates its 10th year with work by Sam Boese and Carl Cimini and a Q&A with them; 7 p.m. reception, 8 p.m. show @ Pittsburgh Filmmakers' Melwood Screening Room, Oakland; admission: $4 (www. filmkitchenpgh.org).

It would be shear madness to forget that "Shear Madness" is @ Cabaret at Theater Square, Downtown, through Sept. 28. $34.50-$39.50 (412-456-6666).

Week 2 of Pittsburgh New Works Festival, through Sunday @ Open Stage Theatre, Strip District, $25 per evening (412-394-3353).

Global Lens 2008, a touring festival of 10 films from four continents. The series begins @ Harris Theater, through Sept. 17, then picks up through Nov. 1 @ Regent Square Theater and Harris. $8 per film (www.pghfilmmakers.org). Or ...

Brooks & Dunn and ZZ Top and Rodney Atkins, 7 p.m. @ Post-Gazette Pavilion; $24.50-$65.50 (412-323-1919). Or ...

Fall movie season gets under way with the Coen brothers' "Burn After Reading" (Pitt & Clooney); "Righteous Kill" (Pacino & De Niro) and "The Women" (Bening, Ryan, Messing, Mendes & more).

Rage of the Stage Players' "Richard O'Brien's The Rocky Horror Show," Fridays and Saturdays through Sept. 20 @ Brew House, 2100 Mary St., South Side; $15 (412-851-0922; www.myspace.com/rageofthestage). Or ...

Jeff Dunham is a one-man cast of characters, so when he steps on stage at 8 p.m. @ Mellon Arena, the ventriloquist comedian won't be alone. There'll be Walter and Achmed and Peanut ... $43 (412-323-1919).

Kenny Blake performs in the Parks Conservancy's Sunday in the Park series, 12:30 p.m. @ Schenley Park Visitor Center's tented patio. Free; (412-682-7275).