Hollywood movie studios are turning up the volume against Redbox, recruiting some of the nation’s top antitrust experts to wipe out three lawsuits whose outcomes could determine the future of the DVD market.

Redbox Automated Retail LLC, a subsidiary of Coinstar Inc. based in Oakbrook Terrace, Ill., has been rapidly erecting red kiosks at stores across the country that offer DVD rentals for $1 per night, substantially less than most retailers. Since its founding in 2002, Redbox has exploded into 15,000 locations at retail spots including Wal-Mart Stores Inc. and McDonald’s Corp.