A Coal Miner's Daughter

This is one of those movies which you are always told is great, but you never get around to seeing it. To tell you the truth, if it had not been for Lolita, I don't think I ever would have seen this film. And, I would have missed out on what is probably the biopic that sets the bar for all other biopics. Is it true to reality? Hint: We have never given an A grade before.