I work as a clinical counsellor for children and youth. As a volunteer project I help youth make their own documentary films. Our current film is about the perception of female body image and its correlation with eating disorders. For our b-roll, we added motion to images that we downloaded from the internet and scanned from magazines. These images are often advertisements or pictures from fashion magazines. In addition, we have included clips from movies and music videos as part of our b-roll. For example, a kid is talking about the stupidity and sexism in music videos while we show a clip from a 'Girlicious' video.
1) Is my use of these copyrighted images and sources of media legal seening how I am making an educational/research based film.
2)If I am allowed to use the aforementioned images in my film, am I allowed to alter them in any way. For example, I took a photo from the internet of a best buy advertisement which showed a skanky looking model. I used the image of the model as part of my b-roll but, in doing so, I used adobe after affects to delete part of the ad(words and other pictures}?