Fox left the acting profession for nine years (1970-1979) after he filmed
Performance (1970) with
Mick Jagger. A combination of his father's recent death, the strain of filming and smoking the hallucinogen DMT with
Mick Jagger led to a nervous breakdown. Fox subsequently joined a religious organisation known as "The Navigators" which is similar to the Gideons and is closely associated with the ministry of
Billy Graham.
