Finding the E-mail Address of A Video Submitter

When someone submits a Video Clip to your Group Video, they are prompted for their e-mail address. This is an optional piece of information to provide; they can fill it in or skip it. If they do submit their e-mail address, it becomes associated with that video. To see whether there is an e-mail address associated with a particular video, push More Options (the three dots on the right side of the menu bar below the video thumbnail).

With the More Options menu open (see above), you can click the Copy e-mail address option. The e-mail address associated with the video will be temporarily displayed and copied to your clipboard (to be pasted into your e-mail client, for example). 

If the menu says "No e-mail provided", this means that the submitter did not provide their e-mail address.