I find that movies tend to ridicule things too difficult for the average person to understand, and those sort of claims are generally a type of defense mechanism for ignorance.
Seriously... science is about observing and making sense of reality, not claiming whatever you feel like being true. And the thing about that is that we normally live over a very small band of reality, so things that "shouldn't" be true end up becoming true, often under conditions far more extreme than we're used to in everyday life. Sometimes it makes a difference in ways we don't yet realize, like how the relativity correction factor has turned out to be important for GPS satellites.
If you were to replace that particular quote with something more like "theoretical physics can prove that a liquid can drip through a completely solid container as if it wasn't there, and start flowing up
walls" would you think you were just being bs'd? Well, what if I showed it to you actually happening
People only believe what they can see or comprehend, reality be damned.