How accurate is it?

It's based on the Pulitzer Prize winning biography by Naifeh and Smith and it really is very faithful to that book (which is a great read). Harris was phenomenal, looks just like Pollock (in fact Ed Harris' dad started him thinking about a movie when he gave him a biography of Pollock because he thought they looked alike). The movie moreover captures the strange Pollock family dynamic (mother and brothers) and also the feel of the era and the New York art community in the 1940s and '50s. Most of the important figures from Pollock's art world are there -- Clement Greenberg, Howard Putzel, Peggy Guggenheim, the Rosenthals, even de Kooning. The casting was phenomenal. Though Marcia Gay Harden is much prettier than Lee Krasner, she used her body language and speech in a very powerful and specific way to capture the cadence and forcefulness of Krasner's speech and personality and her absolute dedication to Pollock. The real Lee at times was a terrible nag, but she certainly didn't ruin his life, he did that quite well all by himself. She stopped painting for years in order to support and promote his work -- she was his manager and chief promoter. Their relationship was extremely co-dependent and they both had their ways of being horrible to each other. The book goes into much details about their relationship, and in the book you'll recognize some of the photos that were depicted quite faithfully in the movie, such as the Pollock family portrait and the photo of Kligman sitting on his lap. Also in the movie is the disastrous interview and filming that was done for Life magazine and it looks exactly like the real thing. The movie of course had to leave plenty of stuff out, including the way Pollock's relationship with Ruth Kligman was starting to fall apart at the end, but what it portrayed seems to be taken very faithfully from known accounts. Some of the dialogue is verbatim from the book "To a Violent Grave," which is a compilation done by one of his neighbors in the Springs of quotes from people who knew Jackson.