Not a fan of history then? Crap, I live in a different country, and I knew the ending. There's no drama in this movie; it's about the characterisation.
Have you read 20 books on the subject? Which 20 have you read?
I'd argue that Nixon was portrayed (through fictional personal scenes which weren't witnessed or filmed in real life) as more human than any existing evidence suggests. For example, Frost has repeatedly stated that the midnight drunken phone call call to his hotel room did not happen. As I understand it, that was required to get biographical data from certain real people. But it's a drama, not a biography.
Despite your opinion that it deserved the Academy Award, have you seen Slumdog Millionaire? I liked both movies a lot, but Millionaire was the better film.
