Leviathan (1989)

I know, let's make Alien again but put it 16,000 feet below the surface of the Atlantic Ocean and instead of having the monster rip OUT of your belly, let's have it rip INTO your belly. We'll hire some solid B-list actors (like Peter Weller, Meg Foster, Ernie Hudson, Richard Crenna), create a relatively creepy shapeshifting monster, and end it almost like they ended The Poseidon Adventure. We'll call it Leviathan but make sure we don't show too much of the monster; we have to save money to make money.

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...Robocop (1987)

This comic book of a movie (if, in fact, it was based on one) is simple-minded and emotionally dry. Peter Weller and Nancy Allen dive into the 80s look for this fight against good and evil that ends with a whimper. It's not extreme, thrilling, or even worth the three days it took to finish but it gets one star for being a movie.