Lost River (Also Known As: How to Catch a Monster ) is a Drama, Fantasy, Mystery film directed and written by Ryan Gosling. It was released on 10 April 2015 (USA). It stars Christina Hendricks, Iain De Caestecker, Matt Smith. The film's content : A single mother is swept into a dark underworld, while her teenage son discovers a road that leads him to a secret underwater town... What awaits ahead ? Enjoy the film and discover by yourself.