A video playback system for jointly displaying video with multiple screens, includes multiple portable communication devices each comprises at least one screen; a location detection circuit for dynamically detecting respective portable communication device's spatial location and orientation; and a multi-screen display controlling server for dynamically generate multiple partitioned videos respectively corresponding to multiple non-overlap image areas of a target video according to detection results of the location detection circuit. The multi-screen display controlling server respectively transmits the multiple partitioned videos to the multiple portable communication devices. The multi-screen display controlling server controls the multiple portable communication devices to respectively display the multiple partitioned videos on the multiple screens to jointly display at least a portion of a visible area of the target video.