I finally got a chance to see Pawn Sacrifice.
My review is that it is 2.5 stars. I did not think it is a great film, but neither was it a bad film. Probably, because I know of Fischer's quirkiness well, nothing in this film was new to me. Also, I wish they had concentrated on how unique Fischer's mind is. There are scores of stories they could have drawn on that would have added depth to the onscreen version of Fischer. Instead, all you see is some narcissistic person bordering on schizophrenia. The only reference to other great American players is to Morphy (whom Fischer considered probably the greatest chess player of all time), who was also crazy.
Toby Maguire did a decent job of portraying Fischer, except that unfortunately he is too short to play Fischer. Fischer was like 6' 2". This film also focuses strictly on Fischer, and not the beauty of chess and why people with minds like Fischer are attracted to this game and not the millions of other games, or similar disciplines like math.
One thing, this is probably the most accurate chess film ever to come out of Hollywood. The actual positions on the board are real from real games. I have never understood why Fischer took on h2 in game 1. I suspect no one knows because no one dared to ask Fischer WTF he was thinking about, lest he go into one of his tantrums.
So I say see it, but be aware that they turned a very three dimensional person into a cartoon. And chess in general takes a back seat.