Startup founder Egor Dubrovsky won't trim his beard until Filmustage's monthly recurring revenue triples; today it's more than 15 centimetres long. Filmustage applies AI to pre-production, analyzing screenplays to flag production elements like a character's beard, which affects makeup, continuity and scheduling. From May to September 2023, the Writers Guild of America (WGA), representing 11,500 screenwriters, held a 148-day strike against the Alliance of Motion Picture and Television Producers over AI use in scriptwriting. The resulting agreement introduced protections: AI cannot receive writing credit, AI-generated material cannot diminish a writer's authorship, credit or compensation, writers may use AI voluntarily but studios cannot require it, studios must disclose AI-generated material provided to writers, and the WGA retains the right to challenge use of writers' work to train AI models. Belarusian-founded Filmustage was co-founded by Dubrovsky, Ruslan Khamidullin, and Andrei Karalkou. Dubrovsky's background includes film production for Uber, the United Nations and TikTok. The idea came after his passport was stolen during a visit to Los Angeles, forcing him to stay in the US for about six months while working on productions for Netflix and Amazon, exposing him to the industry's reliance on spreadsheets, paper, pens and manual processes.