This is not one of the best teenage post-apocalyptic films, but it's ok. I have not read the book, so I cannot say whether it stays true to the novel, but regardless, there are some exciting scenes. The plot involves an alien species slowly taking over the world and centres on a female protagonist and her journey to reunite with her little brother. There is some suspense, particularly as the film gradually reveals what is going on, but there is also some terrible dialogue and embarrassingly lame moments. Teenagers are sure to enjoy it, but more mature audiences will roll their eyes at all the clichés. Helping the film is its solid cast, led by Chloe Grace Moretz and Liev Schreiber. Alex Roe is also sure to attract a lot of attention for his cheeky lake scene.