"I never know what films will have an impact either socially or politically," he said. "It's a tough one, because sometimes things can be too on the nose. You hope you're involved with things that will just make an impact, that will affect people somehow. Sometimes that's socially or politically, and sometimes that's just soulfully."
, a longtime activist even before his paralyzing accident in 1995 when he was thrown from a horse in an equestrian competition, used his own celebrity for good causes ranging from the Make-a-Wish Foundation, to Amnesty International, to the Natural Resources Defense Council.
After his accident and extensive, painful rehabilitation, he traveled constantly throughout the country to speak on behalf of other people with disabilities and also actively lobbied in . In September 2007, the House Energy and Commerce Committee passed the Christopher and Paralysis Act (H.R. 1727) to be considered by the full House, a bill intended to improve the quality of life for those with spinal cord injuries.