United Kingdom, Jan. 31 -- Matt Damon's friendship with Ben Affleck has survived "different phases" in their lives.

The 55-year-old actor has been friends with Ben, 53, since childhood, and Matt admits that their relationship has evolved over the decades.

Matt - who has been married to his wife Luciana since 2005 - told People: "The circumstances of our lives have changed a lot and obviously we've gone through different phases of life, having kids, so those things are vastly different but I feel like who we are as people was kind of established together a long time ago in our adolescence and teens and those things have been pretty consistent."

Matt and Ben recently confirmed that they've struck a deal with Netflix to boost pay for all ...