It may sound like the latest comic book film, but Captain Fantastic is anything but.
The off-beat drama stars Viggo Mortensen as a father raising 6 children in a forest, away from the trappings of modern society. But a family tragedy forces them to leave their way of life behind and challenges everything they have learned.
The feature written and directed by Matt Ross was first screened at the 2016 Sundance Film Festival. It was then launched at the Cannes Film Festival where it received a 10 minute standing ovation and picked up the best director prize.
Speaking at the London premiere at Somerset House, Viggo said his parenting shared some similarities with the character he plays.
Viggo said: "What the character Ben does in terms of being honest and forthright with his children, I was like that with my son, even about tricky subjects like sex and death. There are moments in the movie where Ben is quite direct in his explanations. It's funny and shocking, but the basic idea is good. I think he means well."
Captain Fantastic is released on September 9.