[Joeboy]

That would be the "most popular" films of 1979, as rated in recent years.

Here's imdb's biggest films of 1979 by US box office:

http://www.imdb.com/search/title?at=0&sort=boxoffice_gross_u...

Alien is thrashed by Star Trek: The Motion Picture and Moonraker. Apocalypse Now is thrashed by The Muppet Movie.