Runaway Divas @ Siskel Film Center

Runaway Divas, a strange-sounding film about the friendship between Marcy, an aspiring supermodel, and Miriam, a 30-year-old accordionist who's "not all there," premieres tonight at the Siskel Film Center. The movie was made by Chicago filmmakers Monika Szewerniak and Aleksandra Hodowany, who will attend the show tonight. Runaway Divas will run at the Film Center through August 5, so if you miss the premiere tonight you can still see the movie. Showtime tonight is at 8:00; check the Film Center Website for other showtimes. Siskel Film Center: 164 N. State. (312) 846-2600.

Lip @ Neo-Futurarium

Performance poet Lisa Buscani, a former Neo-Futurist, returns to her old stomping grounds this month and presents Lip, a weekly spoken-word extravaganza. Every Friday and Saturday night in July will feature a different lineup of writers and performers, each one delivering 15 minutes of scintillating verbiage. This week's Lip lineup: Lisa Buscani, Kristiana Colon, Mary Fons, Scott Hermes, K-So G, Jeff Lewis, Beau O'Reilly. Fans of the spoken word will definitely want to listen to Lip. Show starts at 8:00, doors open at 7:30. The Neo-Futurarium: 5153 N. Ashland (at Foster). More information and reservations: (773) 275-5255.

Critical Mass

Chicago Critical Mass shoots for its largest ride yet: 3,000 bicyclists. Be one of them. Ride a tandem and be two of them. Either way, gather at Daley Plaza at 5:30 p.m. This month's route is yet to be determined, but there is talk of the destination being a party at Montrose Beach.

Horro'Rama Drive-In and Convention

Flashback Weekend, aka The Horro'Rama Drive-In and Convention, happens this weekend at the Holiday Inn O'Hare International in Rosemont. Dozens and dozens of names that will be quite familiar to the horror fan: director George Romero; critic Joe Bob Briggs; local horror movie show host Svengoolie; and a slew of lesser-known (but no less important) luminaries. See a reunion of the cast from Day of the Dead! See a musical parody of Army of Darkness! Gaze at a room full of memorabilia dealers, celebrity signings, and miscellaneous activities! And marvel at the convention's recreation of the drive-in experience with an outdoor full-size drive-in screen, 35mm projection and stereo sound system! Go check out the Website for the full details. The convention happens today through Sunday, August 1.

The Monkey Show

Rotofugi celebrates its grand opening tonight with its first show, the Monkey Show, an exhibit of customized "Fling the Monkeys" from AdFunture. The show starts at 7pm at the store, 1953 W. Chicago Ave. Free.

Acid house with DJ Pierre @ Smartbar

Acid house enthusiasts (the music, not the drug or the book) should get down to Smartbar tonight where the lineup is all acid house, all night long. DJ Pierre, the man who discovered that tweaking the bass of the TB-303 drum machine produces the unique squelchy sound that came to be known as acid, is headlining. Adonis, Mike Dearborn, and Tim Baker are also on the lineup. 3730 N. Clark, 21+, 10 p.m., $10.

Newberry Library Book Fair

The 20th Annual Newberry Library Book Fair is happening this week. Browse over 100,000 titles with many books priced at just $2 or less! Admission is free. The book fair is taking place July 29 & 30, from Noon-8pm, and July 31 & August 1, from 10am-6pm. The Newberry Library is located at 60 West Walton. See their website for more information.

Indiefest Chicago

Indiefest Chicago begins its 10-day run of more than 50 independent films tonight at the Biograph, 2433 N. Lincoln. First shows are at 7pm, tickets are $10, and the schedule is right here.