According to Paste Magazine:  There are more than 300 movies streaming on Netflix Instant categorized as “Sci Fi & Fantasy.” Many like Invasion of the Star Creatures and Zeta One would make great fodder for the MST3K gang. Some like sequels Highlander: The Final DimensionStarship Troopers 2 and Mimic 2: Hardshell aren’t even worth the bother. But there are some great examples of the genre here. Or genres, we should say. Some of these are straight-up sci-fi, while others are more fantasy, comic-book or horror or some mixture of the above. A few verge on high art, while others are…well, yes, we had to include C.H.U.D.

Check out the list here.