AI-driven personalised films face two main hurdles: high costs that need to drop dramatically, and the challenge that most viewers lack the storytelling skills of professional filmmakers. A more realistic approach might be letting people customise existing shows by saying "make something like The Wire but set in Korea with my favourite actors." The complexity and cost of video generation means it will likely lag behind other AI advances, and without proper creative direction, personalised content could just become "AI slop."