If you don't have a mac, its still worth a look as principles apply to 'movie maker' for windows.
I have put chapters with timings so that you can skip to specific chapters as required.
Please note I am not expecting a really polished film, but I am expecting a good sketch up model with an excellent fly through, three pauses for a photoshopped rendered scene showing each of the three principles of design (annotated as 'Ice cold in Balham' video) that you have used for your design. A title and end credits also required.
The rest is for you to use your creativity and skill to get what you can out of the movie programmes for each of the operating systems, though only a small percentage will be on your ability to operate a movie app. The benefit of a movie is to break the ice and conquer the fear, plus have a Vimeo account for future use.
I have put the chapter page for reference
DL imovie instructions from Grant Beerling on Vimeo.
Windows Movie Maker
Instructional video for the Windows user's.Not that different from iMovie.