In a pre-Cannes move, Voltage Pictures has come on board to co-finance and handle international sales on the Constantin Film/Don Carmody co-production “Unwind,” starring Ian Nelson, Kiernan Shipka and Percy Hynes White.

Roger Avary is directing. He and his daughter Gala wrote the screenplay, based on Neal Shusterman’s best-selling novel.

The story is set in a cruel dystopian world where, when young adults turn 18, they either become a functioning cog in the machine of a brainwashed society, or they are “unwound” — with their bodies taken apart, piece by piece, and given to those the government determines to be more suitable.

Nelson, Shipka and White will portray three young people with a desire for freedom and self-determination that is greater than their fear of unwinding. Bill Paxton and Jay Baruchel are also attached.

Producers are Don Carmody, Robert Kulzer, Avary, Julian Stone and Marc Benardout. Executive producers are Martin Moszkowicz, Nicolas Chartier, Jonathan Deckter, Charlotte Stoudt and Catherine Kimmel.

Principal photography is set to begin in mid-October in Manitoba, Canada. “Unwind” will be set up as Canada-Germany Treaty Co-Production.