very good movie. nice to see a movie without explosions, super heros and over the top CGI. alien hunters hunt by sound and have devastated the planet. a family adapts and tries to survive. although there are questions i have that the movie doesn't address its a solid 8/10. Its PG in the US so no gore and limited blood/violence. nice to see this movie raking in the money. perhaps Hollywood will notice and stop all these crappy super hero franchises.