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

When I was a child it scared me

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

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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 Godzilla (1998)
21 Robocop 3
22 Doctor Who and the Daleks
23 Spaced Invaders
24 Star Wars Episode I: The Phantom Menace
25 The Cell
26 Hollow Man
27 Lost in Space
28 Timeline
29 Freejack
30 Rollerball (2002)
31 The Time Machine (2002)
32 Predator 2
33 Virus
34 Saturn 3
35 Event Horizon

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

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