This was an amazing movie, first off. Everything, story, effects, characters, were perfect. However, this movie includes a ton of violence, blood, sexual references, etc. In one part of the movie, the staff finds a house full of alien egg sacs and performs what they call an "abortion" by burning down the shack. Body parts are blown off and sometimes innocent "prawns" are killed by humans for the sake of science. This is a beautiful movie for matured teens and adults, but it's definitely not for children or the faint of heart.