Hot Lips, Scat and the hypnotic shenanigan. Road to Rio is directed by Norman McLeod and written by Edmund Beloin and Jack Rose. It stars Bob Hope, Bing Crosby, Dorothy Lamour, Gale Sondergaard and Frank Faylen. Music is by Robert Emmett and cinematography by Ernest Laszlo. Hope and Crosby star as two vaudevillians, who after setting a circus on fire, stow away on a liner bound for Brazil. Once there they encounter a distressed woman (Lamour) who is being coerced into an unwanted marriage by her scheming guardian. The fifth in the hugely popular "Road To" series of films, Rio follows the…