Two Hollywood heavyweight studios are locked in a bitter legal face-off with a Los Angeles-based special effects company over ownership of the iconic Ghostface mask from the “Scream” horror franchise.

“Movies don’t create psychos, movies make psychos more creative.” That line, spit out with creepy conviction by Billy Loomis (Skeet Ulrich) in the blood-drenched third act of Scream, is taken for ...