Gene Maddaus Senior Media Writer The Directors Guild of America is disputing a Writers Guild of America strike rule that forbids writer-directors from making minor script changes. The conflict revives a decades-old battle — which went all the way to the U.S. Supreme Court in 1978 — over the WGA’s jurisdiction. Though the Supreme Court ruled against the WGA, the guild has continued to argue that “hyphenate” members are prohibited from making minor script modifications during a strike. The dispute turns on eight types of activities — including cutting material for time, making adjustments in dialogue, and changing stage directions — that the WGA sees as writing work under its jurisdiction.