Queen of Blood, 1966, Starring John Saxon and Dennis Hopper

Dennis Hopper plays King Koopa in the 1993 live action Super Mario Brothers movie. Queen of Blood is a 1966 sci-fi horror film starring John Saxon, Dennis Hopper, Basil Rathbone, and Florence Marley. Of all the movies we've ever done on Weird House, which one do you think is comprised to the largest extent of pre-existing footage? It's got to be this one, right?