Would this movie have been as popular WITHOUT Star Wars?
Star Wars was released in May 1977 and ran in theaters for over a year.
CEotTK was released in November 1977, and while not as popular, was also very successful. In some theaters, they even ran together as a double feature.
At the same time on syndicated TV, reruns of Star Trek had developed such a fanatical, convention-attending following that a movie franchise was shortly to follow.
Does CEotTK owe at least some of its success to being in the right place at the right time, capturing the already-existing science-fiction zeitgeist of the late 1970s? Would it have been as popular without Star Wars and Star Trek paving the way?
(I'm aware of the debate that CEotTK is really NOT science fiction, but rather a horror movie dressed up in sci-fi clothes. The presence of aliens and spaceships makes it convenient to label it science fiction, and anyway there is a LOT of cross-over between the two genres.)