Miracles DO happen!

Ben Affleck is out of rehab and, seemingly, back on track! The actor joined estranged wife Jennifer Garner and their kids - Samuel, Violet, and Seraphina -- at Sunday service today in Pacific Palisades. After just more than 30 days of treatment at a posh Malibu rehab facility, Ben is out and back in business, following Jen's intervention in late August.

Ben appears to have put on a few pounds during treatment -- it's common that as people give up alcohol, food can be a replacement. Ben was exercising daily, as he got approval from the The Canyon rehab to go to his home every morning for a trainer-led workout, usually involving a game of basketball in the driveway. Looks like Ben's still got a few pounds to lose, though ...

Still, it's great to seem him reunited with his kids and doing what he needs to do!