Steven Soderbergh an awful lot on an iPhone. He's made at least two movies with them. I'd argue that he is a 'pro'. https://www.indiewire.com/features/general/

Steven Soderbergh an awful lot on an iPhone. He's made at least two movies with them. I'd argue that he is a 'pro'. https://www.indiewire.com/features/general/steven-soderbergh-interview-sundance-iphone-unsane-1201921769/ https://www.indiewire.com/features/general/steven-soderbergh...