Clash of the Titans

At first glance, this 1981 feature film looks horribly dated. But the stop-motion effects by Ray Harryhausen, from his rendering of the Kraken to an unforgettable depiction of Medusa, are wondrous. And if you don’t like Harry Hamlin as Perseus, look for supporting players Maggie Smith, Burgess Meredith, and Laurence Olivier. HBO Max or $4 on demand