Using forms mode, you can utilize keyboard shortcuts to make usability more efficient.
Space bar will play and pause the video.
You can press A to open the Accessibility Dialog.
This describes many other keyboard shortcuts for video controls.
The video is currently set-up to show just a clip from 0:00 to video end. You have requested to see a portion of the video outside of the clip.
Click OK to switch to the full video or click if you would like to stay inside the clip. You can always go back to the clip with Tools and Clip Mode