Q: Emailing video files

Hello!

if you're using Yosemite and an iCloud account on a Mac or PC you can use Mail Drop: Mail Drop limits - Apple Support

Mail Drop lets you send large files like videos, presentations, and images through iCloud.

I phrased that badly. If you are using Yosemite and iCloud on a Mac, or if you have a PC

If you're running Yosemite, you should be able to use "Mail Drop." Otherwise, use a third-party service such as "yousendit."

Mail (Yosemite): Add attachments

Your questions are answered in the linked support article.