If your both on messenger it can be done easily by simply dragging the film file into the conversation box and getting your friend to accept the download.
As regards emailing, it really depends on the size of the video, your connection and your email account (whether or not it wil allow large attachments?). If you have a decent connection and use an account such as gmail which give you tonnes of storage then its possible to just have it as an attachement - be warned that it wil take a while to upload though.
Hope this helps.