How to insert dynamic data into a produced video I was wondering if anyone knew the technique or how to place dynamic information into a produced video?

The idea is that you could, say connect to facebook, and then display your friends faces in a movie about missing persons or similar. It's the same principle as the Intel Museum of Me where you grant access to facebook and it creates a gallery of your facebook pictures.

Or similar to this video where you can upload your face into a video, http://vimeo.com/25392805

I've been searching for ages for a method or technique for this but I can't find anything. Searching for "how to insert pictures in video" or "how to load dynamic data into video" doesn't seem to yield the right kinds of results.

Thoughts appreciated.
You should try googling for something like green screen software or chromakey software

There is a wide range of free, cheap and very expensive applications to do this. Some of the free ones actually work okay - depends on your requirements.