Oscar Award nominated actor Ryan Gosling makes his directorial debut with the upcoming film Lost River, and the teaser trailer for the film has found its way online. The dark fantasy film shows a single mother who finds herself in a dark underworld. Her teenage son finds a road which leads to a secret underwater civilisation. In the trailer, Iain De Caestecker is shown walking out of a derelict building to see a bicycle in flames go past him. This is followed by random images of a house on fire and a man riding on a car with his top off. The trailer does not give much away about the film, but actors Christina Hendricks, Matt Smith, Saoirse Ronan, and Eva Mendes also feature in the film. Lost River will be premiered at the Cannes Film Festival in France on Tuesday, May 20, 2014.