The Denver Post profiles how two men’s deeply held faith led to a new documentary on slavery and forgiveness.

Since 2004, the Lienau family of Camano Island, Wash., has been traveling the world apologizing for slavery, hoping to repair some of the damage done by the transatlantic slave trade.

Michael Lienau is a filmmaker whose latest documentary, “Yokes and Chains: A Journey to Forgiveness and Freedom,” is about the Lifeline Expedition, a project started in England by a former teacher, David Pott.

The two men share a deep Christian faith and a concern about the impact of slavery on the present.

Lifeline brought together groups of Europeans, Americans and Africans who traveled together staging walks and other events at which they offered apologies for slavery–at a former plantation in Barbados, in a stadium in Gambia, along a path in Virginia where enslaved Africans once were marched from ships.

You can watch a trailer of the film on Google Video.