Seven-time Formula One world champion Michael Schumacher is the subject of a new Netflix documentary to be released on September 15, the platform announced on Friday.

The film titled Schumacher retraces the life and career of the German driver, who has not been seen in public since a serious skiing accident in 2013, and promises unseen archive material that shows the "many facets of his multi-layered personality." 

The portrait of the racing legend, now 52, is "the only film supported by his family," the platform said in a press release. 

Schumacher's manager Sabine Kehm describes the film as the "family's gift to their beloved husband and father."

The documentary features exclusive interviews with his wife Corinna, his two children Gina and Mick, himself an F1 driver since this season, and brother Ralf, as well as those who worked with or raced against Schumacher, including Jean Todt, Bernie Ecclestone and David Coulthard.

Schumacher, who won 91 Grand Prix before retiring in 2012, suffered a serious head injury on December 29, 2013 in the French Alps and his state of health remains secret.

"The greatest challenge for the directors was certainly to find the balance between independent reporting and consideration for the family," said Vanessa Nocker, who directed the film along with Hanns-Bruno Kammertons and Michael Wech. 

"Corinna Schumacher herself was our greatest support in this.

"She herself wanted to make an authentic film, to show Michael as he is, with all his ups and downs, without any sugarcoating. 

"She was great and brave enough to let us do what we wanted, and so we respected and kept her boundaries. A very inspiring, warm woman who made a lasting impression on all of us."

It will be released 30 years after the German's first Grand Prix in Belgium in August 1991.