Aliens

Greys, Nordics, and LGMs - oh my!

The Christmas Martian
Hobgoblins 2
RiffTrax Live: Hobgoblins
Savage
The Alien Dead
Gumby: The Movie
Flash Gordon (1954) - Part 1 (with Matthew J. Elliott and Ian Potter)
Invaders from Mars
Amanda and the Alien
The Return
Feeders 2: Slay Bells
Feeders
Contamination
KRULL
Devil Girl From Mars
The Dark
Oblivion 2: Backlash
The Journey: Absolution
Starship Invasions
Oblivion
Star Games
Attack from Space
The Film Crew: Killers from Space
Alien Outlaw
Flying Saucer Mystery
RiffTrax Live: Santa Claus Conquers the Martians
Safety Woman: In Danger Out of Doors
Dr. Who: Daleks - Invasion Earth: 2150 A.D.
Starship Troopers (Studio Edition)
Dr. Who and the Daleks
The Galaxy Invader
Avatar
RiffTrax Live: Plan 9 From Outer Space
Cloverfield
The Star Wars Holiday Special
Missile to the Moon
Independence Day
Predator
Battlefield Earth

Which one's your favorite?