Creating a blurry vignette with Iris Blur

- [Instructor] In this movie, we'll surround this guy's face…with a blurry vignette using another one of…the Blur Gallery filters, known as Iris Blur.…Now, of course, I want to apply Iris Blur…as an editable Smart Filter, but I want to do so…to the entire composition, every single layer in the stack.…And so, I could convert the whole thing to a Smart Object,…by going up to the Select menu and choosing All Layers,…and then, I could click on the Layers panel fly-out menu…and choose Convert to Smart Object, and you may wonder,…why don't I just right click inside the Image window…with the Rectangular Marquee tool like I normally do,…and that's because the Convert to Smart Object command…is missing, by virtue of the fact that some of these layers…are already Smart Objects.…

Now again, I could convert the whole stack…to a Smart Object.…The problem is, then I lose access…to these individual layers,…and I create a much more complicated image…from Photoshop's perspective, one that's likely to be larger…when I save the file to disk as well,…