A few years ago he gave us a glimpse of his life and thoughts in a book written with Greg McGee and now is broadening that interaction with a movie which has been in production for the last 14 months.
Keeping that secret is a tribute to the discretion of all those involved in the production of a movie about the former All Black skipper who keeps a lid on many private aspects of his public career.
The movie title will be revealed in the next few weeks as post-production continues while a teaser about the film has been released online.
"I was an ordinary kid who loved playing the game of rugby and had the dream of becoming an All Black. I've surprised myself with what's possible if you want something badly enough. I've learned a heck of a lot along the way," McCaw says about the film.
"I've never been big on talking about myself but I hope that by sharing my story, people might be able to find something in it to help them achieve what they really want to."
The movie follows McCaw's final 365 days as the most capped player in All Black history as he attempts to lead his squad to successive Rugby World Cup crowns.
The film attempts to depict what makes McCaw tick and how a small-town Kiwi boy was able to find and channel the mental strength needed to perform repeatedly, to the highest standards.
"Being alongside Richie for the past year has been an incredible journey and we are excited to be able to bring his remarkable story to life on the big screen," say joint directors Michelle Walshe and Justin Pemberton.
"His story transcends sport and shows us much about the power of determination and mastering the potential of the human mind."
The film is produced by Augusto with investment from the New Zealand Film Commission, Woodward Trust and the Government's Screen Production Grant with other financing from Kiwibank.
"We are pleased to support this special film. Richie McCaw's achievements have been witnessed on a global stage but never before has the world had such privileged access. It is a story we are sure will inspire young New Zealanders and to see moments that have swept the nation in a cinematic landscape is truly exciting," the NZ Film Commission says.