N243AC —

What was the movie had a scene one of these sucking water out of a backyard pool?

whatever it was, it was probably just special effects: One can't "suck" water more than 30' up. Not enough external atmospheric pressure above the pool to push the water up more than ish 30 feet/10m no matter how hard a vacuum above the top of the column.,

all that is moot if the wheels were in the pool of course. But that would be a bit rough on the rest of the backyard though...

Seen one of these monsters at the Pima Air Museum/Boneyard (Tuscon AZ USA) they're HUGE!

They don't SUCK, there is a pump on the bottom of the hose.