The phrase "widescreen format" refers to a type of screen or display that is wider than a traditional or standard screen, allowing for a broader and more immersive viewing experience. Full definition
More screen is more screen regardless of aspect ratio and a lot of content is filmed in widescreen format anyway and then cropped later. (digitaltrends.com)
Even in the new widescreen format, messages are shown on the right. (lawyerist.com)
The press screening I saw was projected digitally and cropped in a standard widescreen format. (pitch.com)