Presumably, ma'am, you have already saved the video that you made on your laptop.
What you need to do is send an email to that "someone" and attach the video to the email. i.e. write out your email, then click on the paperclip icon ... usually found near the bottom, or top, of the email program that you are using ... and browse your laptop's hard disk drive to find the video. Either double-click on the video or click once and then Add, then Send your email. The video will be received by the recipient as an Added file or downloadable file.