Let’s face it: honorific nicknames in popular music don’t come any more clear-cut than Madonna and the Queen of Pop. The singer, songwriter, businesswoman, actress, producer, dancer, director, author and humanitarian born Madonna Louise Ciccone in 1958 has ceaselessly shapeshifted and fearlessly reinvented like no other. Her musical output is but half the story. Naturally, such a towering legacy has attracted its fair share of filmed exposés and feature-length accounts over the years. None, however, even flirt with the sheer watchability of Alek Keshishian’s 1991 film Madonna: Truth or Dare (or In Bed with Madonna outside of North America). Filmed…