Andre Kle

Hello! I am curious about the question how movies like "The Girl with the dragoon tatoo", "Anonymous", "Drive" or "The 3 Musketeers" achieve their 1:235 aspect ratio apparently without shooting anamorphic. Did they just crop the picture in postproduction or is there another way to do that? I did not find any answers on the internet. Did someone know or read about it? Thanks for answers!