Frame rate refers to the number of consecutive images or frames displayed per second in a movie or video. Films are typically shot at 24-30 frames per second, while some newer movies use 48 frames per second for higher quality. The appropriate frame rate depends on the genre and whether it will be viewed in theaters. Video format refers to the type of file the video is saved as on a computer so it can be edited. Common screen ratios for movies and TV include 16:9 and 4:3. Resolution refers to the number of pixels in an image, with higher resolutions allowing for larger displays and more detail. Compression reduces the file size of audio and video by decreasing volume differences to allow for broadcasting and storage.