Elvis Costello, right, jams with Delbert McClinton at the Old Warehouse in Dallas, 1978: Kirby Warnock

Elvis Costello, right, jams with Delbert McClinton at the Old Warehouse in Dallas, 1978: Kirby Warnock

Oak Cliff-based filmmaker Kirby Warnock premieres his newest documentary, “When Dallas Rocked,” Sept. 26 at the Texas Theatre.

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Warnock is financing the film and making it mostly on his own. “When Dallas Rocked” tells the story of the rock ‘n’ roll scene in 1970s and ’80s Dallas. Back then, Dallas was the music capital of the Southwest because this was a hub of the record industry. All of the major record labels had outposts here, and any band who was anything had to play here.

Check out the new trailer below, and look for our Q&A with Warnock in the September Advocate. Warnock’s previous films are “Return to Giant” and “Border Bandits.”

[youtube height=”HEIGHT” width=”WIDTH”]http://www.youtube.com/watch?v=-HGvvDVTLYU&feature=youtu.be[/youtube]