Replace a word in a movie quote with an animal

Alien (1979)

In whales, no one can hear you scream.

The Sting:

"Not only are you a meerkat, you're a gutless meerkat as well."

"I am your panther!"

Darth Vader - Star Wars: Empire Strikes Back

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Did you know that in the 1980s movie PREDATOR the titular character was not originally portrayed by Kevin Peter Hall. It was in fact Jean-Claude Van Damme donning a much more insect inspired full body suit before he left the production which then led to the recasting and redesigning of the famous hunter.

May the horse be with you.

"I'm trying to remember how this thing worked, gotten used to a Zebra"

~ Sulu, Star Trek IV: The Voyage Home

And the famous

"Admiral, there be whales here!"

Rebel Without A Cause:

"I didn't platypus. You saw where I jumped. What did I have to do, kill myself?"

"That's no moon. It's a Puffer Fish!"

Star Wars: A New Hope

Apocalypse Now

Kilgore: Smell that? You smell that?
Lance: What?
Kilgore: Beaver, son. Nothing else in the world smells like that. I love the smell of beaver in the morning.

Dawn of the Dead (1978)

"The only person that could ever miss with this fish would be the sucker with the bread to buy it!"

I'm sorry, Dave. I'm afraid kittens can't do that.

I'm guessing that's 2001: A Space Odyssey?

The Exorcist

"The power of flamingos compels you!"