And the story at times comes off as a loopy cross between "Springtime for Hitler" and Mozart's Cosi Fan Tutte.

NPR: Love and Anchovies: Catan's 'Salsipuedes'

His jaunty little number, "Springtime for Hitler, " was the title tune from the show-within-a-show that Brooks created for his musical, The Producers.

NPR: Love and Anchovies: Catan's 'Salsipuedes'

The Broadway adaptation still contains the movie's centrepiece musical number Springtime For Hitler, a wonderful piece of cinematic kitsch, which has been artfully recreated for the stage.

BBC: Nathan Lane and Matthew Broderick