Cam Newton was left disappointed in the ‘Swamp Kings’ documentary, highlighting the heyday of the Florida Gators under Urban Meyer. Newton rose to stardom at Auburn, where he won the Heisman Trophy and a national championship. The former No. 1 overall pick spent two seasons with the Florida Gators though. Not only that, Newton said the documentary could’ve added much more material. “They left out so much,” Newton said on Club Shay Shay. “Go talk to Percy (Harvin). Go talk to Charlie Strong. Go talk to Joe Haden. Ask them the real. They would’ve done that (expletive) for free … You want to tell…