Humorist and writer Roy Blount, Jr. takes a fascinating trip down the Mississippi River in this special that originally ran on PBS. Blount's journey carries him from the Mall of America in Minnesota, where he attends an "off-the-rack" wedding, to a rodeo in a Louisiana prison. Along the way he meets commentator Garrison Keillor, an imprisoned newspaper editor, and a reclusive environmentalist. Directed by Roger Weisberg ("Road Scholar"). 116 min. Standard; Soundtrack: English Dolby Digital stereo; biographies; photo gallery; more.