Here’s why aspect ratios are important in film

Filmmakers have more tools than ever at their disposal to convey themes, emotions, and other narrative elements of their films. One of the most subtle and frequently ignored by audiences is the use of the aspect ratio. Usually it’s not noticed unless the filmmaker draws specific attention to it, like in Wes Anderson’s The Grand Budapest Hotel. In that film, each time period in the story within a story within a story with a story is represented by a different aspect ratio in keeping with the time period or type of camera that would be used in that instance.