BlizzardBomb said:
Anyways, there's more to the widescreen format than you think. The reason is that a widescreen format is much better suited to your eye's "field of vision"
That may be what they're saing today, but I suspect the reason for widescreen movies is far more mundane than that.
A 4:3 movie (or more precisely, 1.37:1 - what 35mm film uses when there's a soundtrack present) fills the photographic negative. As such, a projector with normal lenses will project a 4:3 image on a screen.
This is no big deal for home movies or small theaters - a 4:3 screen will pretty much fill the back wall of the theater.
But with large theaters, the back wall is much wider - because there are more seats in the room. But you can't magnify a 4:3 movie to cover the entire wall, because it will end up running onto the floor and ceiling.
Widescreen ratios (whether done via wider film (like 70mm), matting, or anamorphic lenses) solve this problem. The movie can now cover the width of the back wall of the theater, making for a more pleasurable viewing experience.
Of course, when shown in smaller theaters, it isn't that great, since you now have lots of unused screen space on the top and bottom. Which is why movies are sometimes released in multiple aspects to different theaters. This was particularly easy back when everybody used a soft-matte process (where the movie is full-frame 35mm and the projector masks off the top and bottom edges.)