The Tommy moviemaker passed away in November, 2011 at the age of 84 after a suffering a number of strokes.
His second wife Vivian Jolly and his third, actress-turned-artist Hetty Baynes, both attended his funeral and they have grown so close since Russell's death they are planning to spend this Christmas (12) together.
Britain's Daily Mail newspaper now reports the pair is also planning to pen a book about the star.
Baynes tells the publication, ""We immediately bonded at Ken's funeral. We married a genius and we both loved him, but he was an impossible man to live with.
""I've known (Jolly's) daughter, Mollie, by Ken and now we have become good friends. So she and Mollie will be coming to me for Christmas.""
Baynes also reveals she and her son Rex paid tribute to Russell on the first anniversary of his death last week (begs26Nov12) by dining out and watching his 1977 movie Valentino.
She adds, ""Rex and I marked the anniversary of his death last week with a meal out at Ken's favourite restaurant and then went back (home) and watched his film Valentino. Rex is a talented young actor whose father would have been proud of him.""