For many, “Little Shop of Horrors” recalls the iconic 1986 musical-comedy film starring Rick Moranis as the impressionable-yet-heroic Seymour against the killer, conniving, puppetized plant Audrey II. The home-run motion picture—directed by Frank Oz (voice of the original Yoda, among several Muppets and Sesame Street characters)—adapted a 1982 screenplay based on the original 1960 movie. […]