Some may have another answer for you but video files are usually very large even for a short video. Most email programs will not allow you to send much more than a few picutres let alone a video file.
If you are close you can "zip" the file and compress it but I would think that if you want to share you should look into Muvee Cloud. You can of course share on YouTube and others.
That is the extent of what I know about it. Perhaps someone will have another suggestion. Steve