Now, I want to preface it by saying you cannot use videos and alter them for commercial purposes (make money), but according to copyright law you may use materials for educational purposes. So, I created a Chess club promotional video using an existing youtube video and my iphone.
1. I found a video online
2. Copy and pasted the URL into this website: http://www.clipconverter.cc/
3. Downloaded the video and saved it to my google drive.
4. Got my iphone and went to my google drive app and opened the video and saved it to my camera roll. 5. Went into imovie and inserted the video from my camera roll.
6. Added text and presto...I have a custom video for eduecational purposes!
Check it out