Thanks very much Chris, but I did have a small problem.
When I tried your method, I could still see the plane, but thanks to the keywords you gave me I found the answer on
Maxon's site:
Step 7: Once you've set up your shadow catcher to your liking you need to "hide" it so that only the shadows are seen against the background image. To do this you need to first apply the same Background material to the Plane object. With the Texture Tag selected, change the Projection to Frontal in the Attributes Manager.
Once I did that as well as your steps, the shadows fell into place and it's amazing how much it helps sell the shot. Thanks again
Graham
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