I wouldn't count the George Melies bullet in the moon because that had cartoonlike proportions because the actual bullet was only a little taller than the passengers standing inside it. "Lost in Space"'s Jupiter was only about the size of a large room.

I'd forgotten that "Close Encounters" crossed production with "Star Wars" because it seemed as if it had come out a lot later, but that's memory. I just watched the documentary, on the DVD, and "Star Wars" is barely mentioned. It's hard to tell how much influence "Star Wars" had on the movie. The fact that there's a little R2D2, on the mothership, is a good indication that  "Close Encounters" effects were post-"Star Wars" release. Dennis Muren, one of the lead effects gurus on "Star Wars", worked on "Close Encounters" after "Star Wars" release. Ralph McQuarrie, the artist who helped sell the vision of "Star War", was brought in to visualize the mothership, so there's a fair possibility that "Star Wars" influenced the scope of the "Close Encounters" mothership.

I had forgotten about some of the 1-episode ships from "Star Trek", so they certainly qualify as pre-dating "Star Wars". Mainstream science fiction novels had tales of huge ships for decades before the movie. Science fiction artwork, likewise, was filled with such visions before "Star Wars".

"Star Wars" still managed to shake up how Hollywood viewed science fiction.

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