Dawn of the Dead
War of the Worlds
Wall-E
Melancholia
The Road
The Matrix
The Last Wave
Miracle Mile
Planet of the Apes
The Rapture
The Terminator
Invasion of the Body Snatchers
Sunshine
Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb
Time of the Wolf
The Road
Last Night
On The Beach
Mad Max Beyond Thunderdome
Reign of Fire
Watchmen
28 Days Later
I Am Legend
Night of the Living Dead
The Day After
The Rapture
Children of Men
Fail-Safe
The Stand
12 Monkeys
A Boy and His Dog
The Day of the Triffids
By Dawn's Early Light
Crimson Tide
The Road Warrior
The Sum of All Fears
Logan's Run
The Day After Tomorrow
The Core
Deep Impact
War Games
Supernova
Red Dawn
2012
The Book of Eli
The End of the World
Seeking a Friend for the End of the World
The Happening
Armageddon
Cabin in the Woods


^^^^that oughta get you started OP....

and there are 400 doomsday titles here:

[link to www.doomsdaymovies.com]