***Joan Crawford Analyzes the Missing Link; Plus Cutie Kim Braden*** This 1970 British flick mingles elements of "Planet of the Apes," "Frankenstein" and various Sasquatch tales. The scenes where Joan studies Trog are like an inversion of the scenes in "Planet of the Apes" where the female doctor chimp (Zira) analyzes Charlton Heston. "Frankenstein" comes to mind because of the fairly sympathetic portrayal of the half-man/half-ape and his gentle treatment of a little girl. Being a low-budget English film directed by Freddie Francis it has a decidedly Hammer-esque look and vibe. Some have…