akshatmittal

Hey there,
Use the main.js to download your video, instructions included in that file.
(File is here on this page itself, either above or below this)

If in case, Facebook didn't made a video for you, read this: 
http://on.fb.me/LookBackNoVideo

If you got your video once, and you deleted a timeline post (or anything else)
which made the video disappear from the page, you can still retrieve the 
file from your browser cache.