The document discusses choosing a target audience and age rating for a new thriller film called "Psychosis". It decides on a 15 rating to attract a wide audience, as 64% of UK cinema goers are aged 7-34. A 15 rating had the most film releases in the UK and the second highest box office gross. While some thrillers are rated 12A or 18, the 15 rating was chosen to suit the film's content and make it accessible to the largest percentage of cinema goers.