Chronos
I have had a few thoughts on the video script, and present ideas for you to consider:
Terminology
“Wallet” or “client”? It looks like you favour wallet, but I think it would be helpful if you say something like: “… the Peerunity wallet, also referred to as the client…”
Running Order
I suggest you explain the send tab before the receive tab. This is because (a) the tabs are in this order, and (b) from the user’s perspective, sending is an “action”, while receiving is “passive”, so the video may have better momentum if you explain sending first
If explaining sending before receiving sounds back-to-front (since the user must receive before they can send), you can bridge the two by saying something like: “What if someone wants to send peercoins to you? Here is how you receive them”.
Encryption
When demonstrating the encryption of the wallet, don’t use a very short password for convenience, leaving it to the viewer to “make a proper one” (I have seen that on a few videos). Use Notepad or Word to demonstrate briefly onscreen a 12+ character password with upper/lower case, numbers/special characters, to give people an idea of what a secure password should look like.
Having shown this mock password to the world, you may not want to use it to demonstrate the wallet encryption, so you can instead say you are typing in a “similar” one. In practice, to make your presentation run smoothly, your password can be something easy for you to type and retype in the confirmation field – the viewer will not know, since the client does not reveal the characters. So long as you type slowly, the viewer will assume you are using a seriously tough password.
Backing up password and client
Making a copy of the password should be mentioned. I think all you need to say is that, in addition to printing out one copy of the password for regular use, a second paper copy should be kept separately. This is as important as the encryption itself, since a lost password means lost access to the wallet, and therefore lost coins.
Ditto, backing up the client. One of the purposes of the backup is to protect the client against hard drive failure, so I think it would be great to demonstrate saving the backup to an external USB. With regards to frequency of backing up the client, I think saying “regularly” or some such is too vague. You can focus viewer understanding by specifying that the backup is aimed at securing the private keys inside the client, and so should be done each time new coins are received (I am right in this?)
Editing, copying
I have noticed that on the “Receive coins” and “Address book” tabs, it is possible to edit the descriptive labels (by double clicking), and to copy the addresses (by right clicking). On the Transactions tab, double clicking reveals the transaction details. You may want to mention some or all of this
Coin Control, Export, etc.
You have not listed this, as I guess there is already quite enough for the video to get through. But I think you could mention in passing that the Peerunity client has other great features that will be explained in other videos. In that way, the viewer is aware there is more to the client that what is described in the introductory video.