Getting rid of black background in iPhoto slideshow converted to .mov
Hi all!
I have a desperate friend who created about an hour long slide show in iPhoto using "Vintage Prints" theme --it has a black background with photos getting dropped in. There are four segments she wants me to edit together for the whole show for her daughter's graduation party. Is there any way to get rid of that black background and replace it with a solid color background or texture? I have tons of animated textures and backrounds but I can't figuere out how to bring them to the rescue since the .mov is already created...... I thought of keying but 'black' isn't the new chromakey blue or green...... thought of a garbage mask but the shapes of the photos and collages dropping in are not constant.... Ideas?
I didn't see a way in iPhoto to convert that black background to white or color either.... Did I miss something there?
Thanks all!
ClemKins
iMac, OS X Mavericks (10.9.2)