Here are some great videos that I have used in the past with my students.
Chicka Chicka Boom Boom
This is a video from Discovery Education. It retells one of my Kindergarten students' favorite books, Chicka Chicka Boom Boom.
As teachers, copyright plays an important part when we are contemplating using videos and/or images as part of our teaching. One thing from the "11 Tools" blog that I did learn is that when using say a copyrighted video, it cannot be the majority of your lesson. It can only be a small portion of the lesson, used to get the point across, such as an Engage or Elaborate part of the lesson.