List and following description are from Chris Heckmann, Studiobinder, 30 Dec 2009: "It's no easy task cutting down a list of the best Sci-Fi movies of all time to just 25, as Sci-Fi has been on the bleeding edge of storytelling since the beginning of time. Although some Sci-Fi stories have parabolic elements of warning, most do so with optimistic intentions. Those that don't typically are more dystopian. As such, dystopian movies have their own place in cinema history, and therefore are mostly excluded from this list.
So boot up your hyperdrive and set your phasers to stun as we rank the greatest Sci-Fi movies of all time!"
PS There are 26 films on the list because the 2 versions of War of the Worlds together were no. 24 on the list.