What cropping removes from movies.

Movie theaters, televisions, and streaming services sometimes crop movies, cutting off the sides or the top and bottom of the image to accommodate differently shaped screens. The Odyssey is the most recent example to provoke controversy, with some critics and aficionados objecting to presentations that omit portions of its full IMAX frame. Typical viewers may shrug and choose the most convenient theater. Are they missing anything important? Recent research suggests that they may be.