Here are my favorite movies in this genre for each letter of the alphabet:

0-9 – 2001: A Space Odyssey (1968)

A – Alien (1979)

B – Blade Runner (1982)

C – Close Encounters of the Third Kind (1977)

D – Dark City (1998)

E – E.T. the Extra-Terrestrial (1982)

F – The Fifth Element (1997)

G – Galaxy Quest (1999)

H – The Hitchhiker’s Guide to the Galaxy (2005)

I – Inception (2010)

J – Jurassic Park (1993)

K – Killer Klowns from Outer Space (1988)

L – Logan’s Run (1976)

M – The Matrix (1999)

N – Next (2007)

O – The Omega Man (1971)

P – Planet of the Apes (1968)

Q – A Quiet Place (2018)

R – Robocop (1987)

S – Snowpiercer (2013)

T – The Time Machine (2002)

U – Universal Soldier (1992)

V – Volcano (1997)

W – The World’s End (2013)

X – X-Men (2000)

Y –

Z – Zathura: A Space Adventure (2005)