A movie file is a series of individual frames which, when played in sequence, produce an animation. The higher the frame rate the smoother the animation will appear, but the file will also be much larger, require a lot more time to produce, and potentially require high-end hardware to playback (double the framerate > double the file size > double the rendering time > double the playback resource usage).

A framerate of 30FPS is usually fine for most uses, but 60FPS may be preferable for 360 degree videos (see below).

A lower framerate will render much faster and may be used to check the animation export before rendering the movie again with higher framerate and resolution settings for production.