300

I read 300 years ago, in a bookstore, on a lark. I loved it, of course. It was a complete, nuanced story [nuanced? It was a comic where the good guy didn't win]. I didn't remember all the details but compairing the movie with the comic

• I felt like Leonidas was less central in the comic? Obviously he's the main character, but I felt like the other spartan warriors had more of a presence
• It would have been a terrible movie if Gerard Butler hasn't been the king. He handled a lot of little scenes well.
• It could have been a great movie if they had cast a decent actress as the queen.*
• The (mild) homo eroticism of the original comic should have been kept. It's ancient Greece... [you're delusional, they would have been lucky to have made a 10th of the money they took in the US. But it was really mild.]
• The voice-over was too much; I was able to get over it, but they needed to tone it down

*The Queen

It's actually a bit complex. If you'd felt more strongly about her as a character then one scene in particular would have been a lot more difficult for me to watch. If you've spent most of the movie watching her and going "ugh, this woman can't act" it's hard to get worked up about something happening to her character. Maybe she was selected partially to keep the movie more of a popcorn movie?
At the same time she's really the central actor in the movie. Leonidas comes to her for advice, she pushes him to make the right decision, then she hits the political trail, makes tough choices, is betrayed, overcomes it and has a powerful resolution. This was added into the movie (or emphasized) and offered a brilliant storytelling cycle, unfortunately the actress just reads her way through the part.

My wife and I had completely opposite impressions of the sex scenes/T&A factor
I thought the obligatory sex scene was too long (precisely two cuts too long; I was counting). My wife felt that it was actually fine and argued it had significance later in the story. However she didn't like how much breast the queen showed (literally). She felt it wasn't "queen-like".
Generally I'm not in favor of female actors showing lots of skin absent some sort of strong story element (i.e. it's a movie about a hooker or something); however my irritation is based mostly on the fact that guys wear around twice as much clothing as the women and take it off much later in the movie (i.e. you'll see women frolicking in bikini or just bikini bottom when the guys still got pants and a shirt on).
Having said that... this was a movie where the guys were pretty much naked the whole time. I would say that 40-50% of the shots involved multiple six packs trotting around on screen. The queen actress [she probably has a name... She's bad enough that I don't want to know who she is... you're a true progressive. I dislike her for her abilities not her gender] isn't particularly attractive by Hollywood standards so the feeling of T&A was mitigated.

A lot of people have posted that the physically unattractive people being 'bad-guys' is somehow wrong. Personally I don't really buy it in this movie.
Ephialtes is a complex character, obviously gifted (at least smart and brave and hardworking). He makes real choices that affect the environment around him. The ancient world was tough on the handicapped better to have a character struggling with it (and doing service to the story) than just rows upon rows of chisled abs.