The 4th annual ATA Film & Video Festival will take place in San Francisco on Oct. 21-23 and screen films by Martha Colburn, Sam Barnett and more.

The 12th annual Antimatter Film Festival features great experimental films by Martha Colburn, Clint Enns, Damon Packard, Leslie Supnet, and more.

The 21st annual Onion City Experimental Film and Video Festival is a five-day event of great films, including ones by Ken Jacobs, Kerry Laitala and more.

The 2009 PDX Film Fest includes retrospectives of underground legends Bruce Conner and Peggy Ahwest; short films by Robert Todd and Matt McCormick and more.

The Onion City Experimental Film and Video Festival is currently looking for entries for their 21st annual event that will be held this year on June 18-21.

Other Cinema, San Francisco’s legendary underground film screening series, is holding a talk by Ken Hollings and screening a film by Katherin McInnis and more.

This year’s PDX Film Festival is screening Craig Baldwin’s Mock Up on Mu and Georg Koszulinski’s Immokalee USA, plus a short film by Tony Gault and more.