yeah, it's a really good film in its own right, but best to go into it without any particular expectation as pompey says. i know people who think it's lynch's best film and one of the best of its decade, although i wouldn't quite go that far myself. i imagine oblimax may wax about it when he sees this.
re: HAIL CAESAR, it's pretty much the most coen brothers thing possible; a dry, self-aware and self-contained hollywood homage which doesn't pander or savagely satirise or anything, just kinda does its own weird 'po-mo' thing that you'll either vibe on or find alienating, hard to say which. IMO it's one of the coens' weakest but i'm enough of a fanboy that i don't really mean that as an insult.