I am working on a video and I want to be able to Insert a live video of a person fishing and be able to insert it into the center of a fishing reel. Now the fishing reel will take up the whole frame so you don't see anything else around it. The reel will be a static shot for as long as need be the video of the special effect will last about 7 seconds.

I am working in power director 12 ultra. I didn't know if I would have to shoot the static shot of the reel for a given amount of time so the live shot of the fisherman would last just as long. Would this be some kind of a dissolve or what? I would like to know how. Hope this can be done. Thanks for any help you can give.