By Brandy McDonnellAn abbreviated version of this story appears in the Sunday Life section of The Oklahoman.'The Rainbow Connection'On the 40th anniversary of 'The Muppet Movie,' Jim Henson's Oklahoma ties are stronger than everWhen Kermit the Frog made his feature film debut in 1979’s “The Muppet Movie,” the talented amphibian had a banjo in his little green hands and a song on his lips.The film’s poignant opening ballad, “The Rainbow Connection,” earned an Academy Award nomination for songwriters Paul Williams and Kenneth Ascher, reached No.Read more on NewsOK.com