the usual fallacy of lists (Score 0)

surely before we formulate such lists comparing oranges with tuesdays (as might happen similarly if for example one made a list of the best movies showing a picture of a car), we might lay down some basic classifications:

- space movies about actual space. in which case, apollo13 has to be top of the list de facto since it actually happened (give or take).

- space movies about the human fantasy of what we might like space to be like. in which case star wars would probably be top due to its popularity - most humans seem to be most interested in this version of fantasy.

- space movies about the transcendent nature of space as a concept. 2001 comes top.

- space movies that are simply good movies that happen to be set in space. don't know which one would come top here.