I recall watching this as a kid, though not the opinion I had made of it back then. With this in mind, I am baffled by its maligned reputation (the "Leonard Maltin Film Guide" gives it a measly **); mind you, I would not say that I prefer it to the classic 1932 Bela Lugosi version but it is more readily enjoyable (and faithful to its source). The film, in fact, is quite stylish in color – with special care given to the art direction – and a worthy follow-up to Warners' success of the previous year HOUSE OF WAX (1953); like that one, it was one of the numerous genre efforts from the early 1950s to be made in 3-D (though, typically, it was used gratuitously more often than judiciously). The cast is effective, too: Karl Malden adds an Actor's Method sensibility to the lead role of biologist/misogynist, Claude Dauphin is fine as the Police Inspector investigating the various gorilla slayings, Steve Forrest ideal as the handsome hero/accused and Anthony Caruso as Malden's loutish henchman/gorilla keeper. The murders are well-done, suggesting the animal's brutish strength without actually showing it – even the 3-D process comes in handy here as one of the victims throws something at the ape in defense and the latter responds by throwing a chair back at the girl!; there is, however, a goof in the scene depicting the killing of the circus performer (assisting her jealous husband in a knife-throwing act) as she is seen taking off the tell-tale bracelet but is then unaccountably back at her hand in a shot of the mangled (albeit conveniently covered) body! On a personal note, Malta's name comes up a number of times throughout the film: the Maltese cross on a sailor's (eventually revealed to be Caruso) scarf and his inopportune meeting in a dingy tavern with a drunken former 'colleague' (sealing his fate by unwisely disclosing his knowledge of the ape's existence). The latter stages, veering from the Poe tale, actually feel closest to Universal's earlier adaptation – as Malden cannot hold back his obsession with heroine Patricia Medina (engaged to his former student, and presently incarcerated, Forrest), an impulsive move which can only lead to the expected poetic justice of the climax in which the villain meets his own grisly come-uppance at the hands of the trained (read: abused) gorilla. By the way, having included a handful of films during this challenge in which this type of animal was featured as a menace (two more followed in quick succession), I came to realize just how many were made over the years. Finally, as I said in the beginning, this is pretty much underrated both as horror/monster movie and as adaptation of a highly-influential literary work.