"We are engaged and very happy with that. She is my fiancee and that says everything, doesn't it?" he told the mag. Redford, 71m and Szaggars, 52, have been together for more than a decade. They began dating in 1996 and currently reside at the actor's eco-friendly Sundance Resort in Utah.
The Lions for Lambs star was previously married to Lola Van Wagenen. They divorced in 1985 and have three children together - Shauna, 48, Jamie, 46, and Amy, 38.