scene removal plug. in

I saw a tutorial on a scene removal mask that was from a third party.  Anyone ever use a third party plugin that was for scene removal?  I have been playing with the  one  Final Cut gives, but the tutorial that I saw was better.  I just can find it.  

Is this any use?

Peut-être Keyper de fxFactory, que je possède et qui m'apparaît incroyablement performant : .

I think that is the video I watched. Thanks. Perfect.

So I tried the trial version. I don't agree with the results from the Youtube video. Thanks for find. If anyone is interested, my results are that Scene removal worked better than Keyper. Maybe I will post a video of my results. If I get any interest, I will upload. Both were not perfect, but if I created a cleaner background, I think Scene Removal effect would have worked out much better than my test video. I did not pay attention to continuity when shooting the scene. So, I had to try a lot of masking. Rotoscoping is not my favorite thing to do.

When 10.6.6 came out I picked a background that couldn't have been harder to key out  .  .  .  a garden with trees, bushes , flowers etc. and just shot away with no preparation. This is a very low quality version of the result.