Filmmaker Gregory Orr is the step-grandson of Jack Warner, who co-founded the legendary studio. Mario Tama/Getty Images; Frederick M. Brown/Getty Images Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment "The potential sale of WBD does not sit well with me," Jack Warner's grandson, filmmaker and producer Greg Orr, tells The Hollywood Reporter. Orr wants to see Warner Bros.