While you are seeing the movie u want to download Just add 'ss' just before y On the URl ( at *) www.*youtube/......

Install internet download manager or go to savefrom.net you can paste the link there or it gives you an extention called middlemonkey which lets you download any video without copying any url, its cool... at least thats what i'm using

I use Vidmate Its an app

If you use chedot browser it can let you download videos Use ide