It's hot like hell (if you're into chess.)
Tons of never shown footage, interviews and
the highlight is amazing details on the WC Match
in Iceland, Fischer - Spassky, 1972.
Much better.
I just watched a part of "Anything To Win"
and it's your typical -based on sensations- documentary.
It's like watching documentaries on serial killers.
As far as I know Fischer never killed a human creature.
However, in the chess world it's quite common to say:
"I killed him."