Depends what you are looking for.
For the most part it's an old style documentary about a man who did more than most of us could dream of achieving, and he did it without a silver spoon.
Some reenactment and cutaways to some crappy American western movie that were supposed to assist the narrative I guess but imo weren't really necessary. I found the latter jarring - maybe because I would rather eat rat bait than watch an American western...
Some footage I hadn't seen before, that on its own made it worth it for me.
I found it quite emotional. I remember as a child hearing about Timmy Mayer's death at Longford. I was very young but I remember the emotion at the time - I am Tasmanian and my Father used to be involved in a team that raced at Longford. He talked about it quite a lot in the years following.
Whenever I am near the old track I drop in to the pub and spend a quiet minute at the Timmy Mayer exhibits.
(If you ever make it to Tasmania the old pub is well worth a visit - It is a veritable museum of the race.)
The death of Bruce Mclaren affected me in similar ways. Stories from my Father, and, although it didn't happen locally, Bruce was local, one of us, the Australia New Zealand family.
The movie is not the typical slick formulaic crap we usually get these days but that's one reason I liked it. It felt real and personal, not distant and movie like.
It isn't typical Hollywood crap and that on its own is a good reason to see it.
Other films about other drivers are great and those drivers were great, but Mclaren's is a different kind of story, he was a lot more than just a driver.
Maybe not the greatest film ever made (I have no idea what makes a good film in most people's eyes - I dislike most of them these days), but it is about one of the greatest racers who ever lived.
A pity there isn't a lot more footage of those times.
On the whole I liked this film. Imo It was a Mclaren in a world too full of overrated, over polished, overpriced, overhyped Ferraris.
Tim.