Do widescreen movies appear as fullscreen on a widescreen tv?

Question

Also what do fullscreen movies look like on a widescreen tv?

Answer 1

Widescreen TVs have a 16:9 ratio.

Unforrtunately widescreen movies are created in a variety of widescreen ratios. So, unless the movie was also created in 16:9 ratio, you will see narrow black stripes on top and bottom.  You can certainly zoom to full screen, but then you will miss part of the picture.