Worst Science Fiction Movies of All Time

These are those movies you hate, and forget. They insult the genre.

The Top Ten

1 Mars Needs Moms

I haven't seen it, but the very idea makes me cringe and think, is this some kind of a joke? - PositronWildhawk

PositronWildhawk, don't watch it, trust me - RickyReeves

Hilariously bad. I will give it kudos for good animation but it was ruined on this. - Jiorl

I kinds liked it when I was small - Toucan

V 2 Comments
2 Santa's Slay

This sounds like a fun movies - idontknow

3 Space Chimps

Just so bad, it has 0 reason to exist.

4 The Wiggles: Space Dancing

The animation is freaky - Ihateschool

5 Battle for Terra
6 Star Wars Holiday Special

Anything Star Wars themed sucks!

In my opinion is a part of most overrated movie - belarbi

7 Space Chimps 2: Zartog Strikes Back
8 Jedi Junkies
9 Thumb Wars
10 Escape from Planet Earth

This Film Has Unoriginal Jokes

The Contenders

11 Poultrygeist
12 Robocop
13 Robocop 2
14 Skyline

Hell on Earth, this film is beyond dreadful. - PositronWildhawk

15 Battlefield Earth

Mars need moms is the godfather compared to this

Should be number one.

Easily should be number 1 - Jiorl

16 Santa Claus Conquers the Martians
17 Sphere
18 Mission to Mars

SPOILER ALERT: Oh yeah, lol the giant Disney alien at the end made it so ridiculous. - Agent_Cooper

19 Signs
20 Robocop 3
21 Doctor Who and the Daleks
22 Spaced Invaders
23 Star Wars Episode I: The Phantom Menace
24 The Cell
25 Hollow Man
26 Lost in Space
27 Timeline
28 Freejack
29 Rollerball (2002)
30 The Time Machine (2002)
31 Predator 2
32 Virus
33 Saturn 3
34 Event Horizon

Absolute worst excuse for a sci fi movie EVER. Excruciatingly disappointing.

35 Red Planet
36 Ghosts of Mars
37 Total Recall (2012)
38 The Core
39 Pitch Black
40 The Black Hole
41 Star Wars: Episode II - Attack of the Clones
42 Stargate
43 Independence Day
44 The Fourth Kind
45 The Matrix Reloaded
46 The Matrix Revolutions
47 Mac and Me
48 Bigfoot (1970)
49 Invasion of the Neptune Men
50 Space Mutiny
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