The Day of the Jackal is one of my favorite suspense-thrillers from the 1970s, alongside classics like The French Connection and The Conversation, and features a wonderful performance from Edward Fox in the titular role.
Supergirl might not be some misunderstood movies of the 1980s and indeed it is at times pretty awful, particularly in terms of the cheap production design, bad dialogue and nonsensical moments, and yet the movie has its charms, most notably Helen Slater.