The phrase "widescreen ratio" refers to the proportion between the width and height of a screen or image. It means that the screen or image is wider and has a broader view compared to a traditional or square-shaped screen. Full definition
This movie is best enjoyed in its original widescreen ratio! (dvdizzy.com)
The widescreen version is delivered in the film's original 1.85:1 widescreen ratio, enhanced at 16:9. (lightviews.com)
Disney's 15th and 16th animated classics Lady and the Tramp (1955) and Sleeping Beauty (1959) were created in widescreen ratios of 2.55:1 and 2.35:1, respectively. (dvdizzy.com)