I don't know, I haven't seen it yet. I'm not sure I could take the changes from the story I grew up with.
I was looking at the official movie site and the descriptions of the knights didn't sound like the knights I remembered.
Sounds like the same reasons why I'm not going to see I-Robot.
Some of the knights are geniune. One is, I think, totally made up, and Tristram isn't usually associated with Arthur, though he sometimes is. The others - Bors, Gawaine, and Galahad - are as close to cannonical as you get in Arthurian legends.
Of course, if you grow up on Thomas Mallory, or T.H. White, the story won't be the one you know at all.