Hi guys, i'm a newbie to this forum but it looks interesting and i think its the perfect place to ask my question..

Ive got an assignment coming up to present an interview in some shape or form. Ive decided to go for a more original approach.

Ive seen a few times on tv a video which consists of one picture. The picture stays the same, but you record someones face speaking, somehow cut their lips out and put it over the picture. So then you have a picture with moving lips which are synced to the audio perfectly. It also obviously looks fake but i still think it would be a fun way to do my assignment

Its kinda hard to explain, it would be much easier if i linked a video so..
YouTube - Rove Live Fake Thorpie Interview

So if im looking for that, what program should i use? and whereabouts in the program would i go about doing these things.

Thanks!