Shane, I appreciate your help from a while ago. My little project is actually developing well. My problem was that I shot a scene in a pub with a hill behind with vegetation that didnt represent the geopgraphical region the pub was supposed to be in. Luckily the vegetation is green and it acts a proxy green screen. If I use my keyer in fcpx i can replace the “inaccurate background ” with a still shot to give a totally different impression. Problem solved 🙂 until….. when using the ken burns effect to zoom into the primary scene (inside pub) the background doesnt change in proportion so it appears as if the outside gets bigger and and bigger or smaller depending on the direction of the zoom. Is there a way I can tie the two so that the proportions remain constant? Mate, I know you are probably busy but any bit helps, Thanks Carl.