I just watched a short (50min) documentary on Amazon called "Rainman Twins". I wasn't sure I would like it but it turned out to be very interesting. About two girls that are identical twins and have autism. They are Savants like in the Rainman movie and had incredible memories and could name any day of the week if you gave them a date. They could remember every meal they ever had (i.e, what did you have for lunch on 01-15-99 and they would recall every detail. They were obsessed with 100,000 pyramid game show and had to watch every day and they would have notepads in hand and detail every detail. They had a tough childhood but maintained extremely positive outlooks on life.
Anyway, I would recommend as it is fairly short and was interesting.
https://www.amazon.com/Rainman-Twins-Dave-Wagner/dp/B07Y8SC5FH