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OK! Exclusive: Matthew, Camila & Levi

Like father, like son! Matthew McConaughey shares a laugh with Levi, his son with longtime girlfriend Camila Alves, born July 7, 2008. And check out that band on the actor's left wrist -- it's his hospital bracelet! "I noticed it for the first time yesterday that I was still wearing it, but I've been a little busy," Matthew tells OK!.