The document discusses UK film rating classifications and provides descriptions of each rating. The U rating is for general audiences aged 4 and over but may not be suitable for all children. The PG rating means parental guidance is advised as some scenes may not be suitable for young children. The 12A rating allows those 12 and over to attend unaccompanied but younger children must be accompanied by an adult. Higher ratings of 15 and 18 restrict viewing based on depictions of violence, language, sexual content and more. The filmmaker determines a 12A rating would fit their thriller due to limited language but thrilling content.