Wait, did you mean the HBO Documentary called the Thrilla in Manila (
http://www.hbo.com/documentaries/thrilla-in-manila/index.html)? That's the one I finally finished. For 90% of the movie, I started to feel bad for Frazier, especially knowing he recently died. Then at the end, Frazier showed a disgraceful, ignorant side. Even his brother Tony (I think his name was Tony) and his son Marvis showed their dismay in their father's maintained grudge.
Ali apologized to Marvis after the fight, and asked him to pass his apology on to his father and entire family for the hurt he caused them, saying he didn't mean to hurt them like that and he was wrong. He also apologized in 2001 saying his biggest regret was in the way he treated Joe. Joe counters with responding to a question about Ali lighting the torch, saying he wishes someone pushed him into the flame.
His brother shocks the documentary interviewer when he asks if he's heard Joe's voicemail. They call from Tony's phone and hear this:
"Joe Frazier, sharp as a razor, yeah - float like a butterfly sting like a bee, I'm the one who did the job, ask him, you'll see".
Some say they had reconciled a bit prior to Frazier's death, but in the documentary they said that basically Joe would say they did in the lead up to an event, then right afterwards go back to talking about Ali and how he was responsible for putting Ali in his current health state. Dunno where he was on it when he died.
Great fighter. Great determination. Like Ali, no saint.