I’ve got this theory about Columbia’s Indie Grits: It’s like the cool older sibling of Charleston’s film festivals. It’s been around longer than our local fests (now entering its sixth year), it lasts longer (it’ll be 10 days this spring, April 20-29), and it attracts some impressive up-and-coming talent from all over the region.

Submission categories for Indie Grits are expanding this year, adding new ones to the regular features, short film, and student categories. Keep tuned in to the Indie Grits website after the launch party for full details.

To kick off the 2012 submission season of the festival, Indie Grits is hosting a special event at 5 Points Pub (2020 Devine St. in Columbia) on Sun. Sept. 18 from 4-7 p.m. The night features a performance of Films for One to Eight Projectors by Roger Beebe, an experimental filmmaker and professor at the University of Florida (and, full disclosure, my former boss).

Tickets to the event are $15 — or cheaper if you’re a member of a couple of Columbia-based organizations — and are available at indiegrits.com and whttp://www.nickelodeon.org.

Also in Columbia, Linda Cowgill will teach a scriptwriting workshop, hosted by the South Carolina Film Commission, on Sat. Sept. 10 from 9:30 a.m.-5 p.m. Cowgill is the head of the screenwriting program at the Los Angeles Film School, has taught classes at the American Film Institute, and is the author of two books on writing screenplays. She’ll cover writing for both short and feature-length films in room 214 of McMaster College on the University of South Carolina campus. The workshop is free, but registration is required. Visit the film commission’s website for more info.