The trailer for the much-anticipated John Belushi documentary has been released.    The documentary was authorized 4-years ago and is a project done in part with his wife Judy Belushi Pisano.  In the first trailer, fans get a glimpse into the start of Belushi’s career in TV and film along with never-before-seen footage.    Stars like Chevy Chase, Penny Marshall, Jim Belushi, Lorne Michaels, and more add commentary to the film.    Belushi debuts on Showtime on Noveber 22nd.