Audio problem: The police officers chase Arthur to the subway. When the subway train starts moving after they just barely got in, the sound resembles the acceleration sound of a R143 subway car, which actually didn't exist until 2001, but it's a much older car, the R32.
Audio problem: In a bit of movie magic, nobody touches the TV set in the dressing room, but it adjusts its volume perfectly by itself, to the point that not only does not disturb the conversation with Murray and the producer, but even when Arthur is all on his own and sits back in his chair the TV, still turned on and showing a program, is perfectly silent. (01:35:10)
Answer: In the movie Arthur is an adult. He would have been separated from her as a child but, once he turned 18, if he wanted to live with his mother as soon as she was released nobody could stop that.
lionhead