Movie: "Red Haired Alibi" or "Red-Haired Alibi"

I have a screenshot photo of the IMDB page for the movie: "Red Haired Alibi" that show the opening screen for the movie spelled without a dash, yet IMDB officially lists the movie WITH a dash as "Red-Haired Alibi". If the makers of the movie gave the title without a dash, regardless of proper usage and spelling why would it be listed incorrectly. Their is another movie they list as "Red Haired Tumbler" without a dash, so they must feel that it is OK. Change the listing to proper title.