In a trailer for a new documentary on the F1 legend's life, Ecclestone, who stepped down as F1 chief executive in January 2017, has given a unique insight into Schumacher's health.
Michael Schumacher, his wife Corinna, and Bernie Ecclestone in 1995.
Photo / Getty Schumacher's 73-year-old father Rolf is also expected to make an appearance in the documentary, which filmmakers Michael Wech and Hanns-Bruno Kammertöns say will even feature never-before-seen archive footage belonging to the family.
Producers of the film say it was made to mark Schumacher's 50th birthday, which was in January and the 25th anniversary of his first world title win.
"We're very happy about the trust that Michael Schumacher's family and management have shown us.