Last Monster/Horror/Sci-Fi Movie/Show You Watched

[Memphremagog]

Quatermass and the Pit(1967)
Jack the Ripper(1959)

[marsattacks666]

Dawn of the Dead(1978)
Dawn of the Dead(2004)
Day of the Dead(1985)
Alligator (1980)

[horrorhunter]

Castle Of The Creeping Flesh (1968)

The Howling (1981)

[Hepcat]

Battle of Los Angeles (2011) - Trailer



Well the plot was both derivative and full of holes, but there was lots of action.

[Mike Scott]

Battle of Los Angeles (2011) - Trailer

Low budget rip-off of "Battle: Los Angeles", which came out the same year.

[Lunkenstein]

Alien(1979)

My favorite blend of sci-fi and horror.  I'm overdue to pull out my blu ray set.

[Memphremagog]

House On Haunted Hill(1959)
The Cosmic Man(1959)
The Gorgon(1964)

[marsattacks666]

Aliens(1986)
Predators(2010)

[horrorhunter]

Howling II: ...Your Sister Is A Werewolf (1985) 

     Even Christopher Lee couldn't save this stinker.

Seizure (1974) 

The Giant Gila Monster (1959) on Dr. Dreck's Drive-In (The Dungeon Of Dr. Dreck) 

[marsattacks666]

The Crazies(1973)

[Memphremagog]

One Million Years B.C.(1967)
House Of Seven Corpses(1973)
Mystery Of the Wax Museum(1933)
Voodoo Island(1957)
The Pharoah's Curse(1957)

[marsattacks666]

Gore-Met, Zombie Chef from Hell(1986)
Zombie(1980)

[Memphremagog]

The Flying Serpent(1946)
The Norliss Tapes(1973)
Murders In the Rue Morgue(1932)
Voodoo Man(1944)

[marsattacks666]

JAWS (1975)

[Mike...In 3-D!]

The Wolf of Snow Hollow (2020)
Belzebuth (2017)
Blood Rage (1987)
Into the Dark: Tentacles (2021)
The Mortuary Collection (2019)
The Mutilator a.k.a. Fall Break (1984)