Did you know that some of the musical numbers in the movie came with their own challenges as well?
"I HOPE THAT SOMETHIN’ BETTER COMES ALONG" is a rare duet between “ROWLF THE DOG” and “KERMIT”, because HENSON usually performed both characters. “KERMIT”, a simple "glove" puppet, could be operated with one hand, but because of his design, “ROWLF” required two performers: HENSON’S right hand would control the mouth, his left hand would control “ROWLF’S” left hand, while another PUPPETEER would operate the right hand--meaning that in order to perform both roles at once, HENSON would need three hands. In order to achieve the duet, the two tracks were recorded separately by JIM, and then combined into one. HENSON and another PUPPETEER performed “ROWLF” (who required a more dynamic performance), while “KERMIT”, who only had to sit and "lip-sync" the number, was taken over by a third PUPPETEER, marking one of the rare times HENSON entrusted “KERMIT’S” performance to someone other than himself.
“THE MUPPET MOVIE” begins, after the cold open and opening credits, with “KERMIT” sitting on a log, strumming his BANJO, and singing “RAINBOW CONNECTION.” It’s one of the most famous opening scenes in a movie. It was also the first time a hand puppet had been performed while its full body was on screen. How did HENSON make that happen? He climbed into a metal container designed for the movie with a monitor and an air hose so he could breathe. The container, with HENSON inside, was put under the water, and he worked from there. HENSON and the crew did this for five whole days!!