Gorilla at Large

What if we told you that this movie was a mystery revolving around a circus gorilla who is the main suspect in a series of big-top homicides? Still not convinced you should see this, huh? Well, what if we told you it features a young, sexy Anne Bancroft, plus a youthful and, uh, surly Lee Marvin? You need even more? So what if we told you it was also in 3-D?!? That clinched it for us, too.