I take no credit for any of the original videos or game. Permission to use FilmCow's material is granted to everyone as long as it is not done in any way to generate profit, as described in the FAQ of FilmCow's website:
"Can I use something from your video in a project of mine?Feel free to use anything I’ve made in your project as long as the project is non-profit. And by that I mean it’s not for sale, nor is it generating any advertising money, nor is the sole purpose of the project to advertise something that IS for sale."
Link to FAQ: http://www.filmcow.com/faq/