[Borges]

Widescreen films only started being made in the 1950s.

[marajade]

"Widescreen films only started being made in the 1950s."

Many studios though who library content of those movies are now expending money and rematting them for release on DVD.

[ScottFromSpokane]

No, you're simply mistaken. They only started being made regularly in the 1950s, but there were widescreen movies made before that. Apart from the aforementioned 70mm The Big Trail, the best known is probably Abel Gance's Napoleon, which used a three-projector system.

http://www.in70mm.com/newsletter/2001/64/grandeur/grandeur.htm