Tue Jul 20 1999 06:31: !!!!! The movie First Spaceship on Venus, as seen on MST3K, is based on a book called The Astronauts by Stanislaw Lem! "Lem is said to have disowned the film."
Lem was alive as of 1996. That's the date of an interview with him I found. At any rate, he no longer writes.
I'm getting all this stuff at pages like this one.