Matte painting

And it basically made the sets look incredibly big.

But, you know, Matt Painting goes, you know, really, I mean, it started, I think it started in the 30s.

But you're right from a technological standpoint.

They compared the Matt Paintings to the work that was done back in the 50s for another sci-fi movie, Forbidden Planet.

Because it also used matte paints.

And you're right.