You can download free green screen footage on Pixels and edit green screen videos with TunesKit AceMovi
VSDC Free Video Editor
wax 2.0
You can download videos for free in www.wopvideos.com
I have been utilizing ScreenRec, the free screen recorder for the last 2 months and reckon, it is the best free screen capturing tool and will do a good job for you if you want to record YouTube videos with it.
A green screen is for videos, not pictures. You can edit your movies without a green screen yes but you are limitied to your background edit. For pictures, you can just photoshop or gimp which is free.
You can download free HD videos from YouTube, if you are a member. You can also download a limited number of videos through Real player. Some local TV providers also allow free HD download of certain content.
That is illegal.
From Youtube
I want watch & download shyla stylez free videos
you tube
Red tube
yes
Mobile