Embedding a "frame" into a movie using python

[J]

Hi there,

I'm currently experimenting with python by putting together a little webapp running on appengine. 

My objective is to have the user put together some images html and embed the image as a frame into a video file (any embeddable format e.g. swf). So there are three steps:

(1) Convert the html to a "frame" 
(2) Insert the frame into the existing movie 
(3) save the new movie with the frame

For example, I have a film of a sunrise. I want to embed a "frame" which has a little poem about sunrises into the film much like windows movie maker and other such programs allow you to do. 

Is there a way I can do this with python?

Cheers,
J