![Christopher Reeve pictured on December 1, 1978.](https://imagenes.elpais.com/resizer/v2/MSJRD5UXYFDUJJMUI7KQDKZQAQ.jpg?auth=afe827954a5a613d7a452c9cfef52856bcd4a0a6692d441888c72240f26250e7&width=414&height=233&focal=2308%2C1473)
Christopher Reeve’s children want the world to know what Superman was really like
On the 20th anniversary of the actor’s death, a documentary with home videos and interviews premiered at Sundance. ‘During the compilation process we discovered he was a much more incredible man than we remembered him,’ says his son Matthew