Dialogue / Script

In my teaser trailer for "Signed, Sealed and Delivered" I do not plan to have any form of communication as I am only going to have one character. Therefore there is no dialogue and no script needed. Instead I would like some really intense suspense building music which I am going to find from non-copyright websites over the next week or so. There is no particular reason why I have decided not to have and dialogue other than the fact that there is only going to be one actor in my film teaser trailer.