Yes, but considering how MUCH Weir and others had to pack into a movie to introduce the characters/time period/naval warfare to an audience that was as far from educated about such things, Id say they did a damn fine job. It is something VASTLY different than what audiences are used to seeing. I think a lot of Crowe fans were expecting more Gladiator type stuff though, and so came away disappointed. Thing is, if you put Jack Aubrey and Maximus in the same room together, they'd be hailing each others as equals.
My niece loved the movie; partly because she's a sailor with a love of history, and partly because she goes into major-league swooning over Russell Crowe...