Have loved this movie ever since it was released! Great characters and story, but there are some VERY violent scenes (spoiler alert). If you're not a trekkie, you might not know about the "ear scene" in which live, creepy crawlies forcibly squirm into two screaming men's ears. Later, Khan is said to have "tortured those poor people" to death, and Kirk and Co. walk into the science station only to find HANGING, BLEEDING dead bodies of murdered, tortured scientists. These 2-3 scenes are very easy to skip over, IF you watch with your kids and know it's coming. Under those conditions, I have let my 9 year old enjoy this otherwise awesome film. As a trekkie, though, I made sure he'd seen the prequel Star Trek episode, Space Seed.