There are no strict guidelines for what qualifies for fair use ultimately it ' s a court that makes that decision if you ever end up in a lawsuit , however if you follow these suggestions , I ' m quite certain your video will qualify for fair use protections 1 . Try not to feature extended clips of 15 consecutive seconds from the source material in this case the anime show 30 consecutive second clips is entering particularly risky territory 2 . Try not to feature more than 1015 seconds of clips per minute of source material on average . So , for example , if the source material is 2 minutes long , you might take three 5 second clips from the first minute and a 10 second clip from the second minute to feature in your review . 3 . Try not to show full frame clips . By this I mean that it ' s much easier to claim fair use and avoid Content ID matches if the clips take up only a small portion of the screen ideally 25 % or less of the video frame