Hi Hugh,
Thanks a lot for listening and commenting and pleased that you enjoyed it,
Here are some youtube links for Creative Common videos.
Do a right-click to open these up in a New Tab.https://www.youtube.com/channel/UCKgIK9YKE6IcKAbfYoisuIAhttps://www.youtube.com/channel/UCFSsvRe2BdZjfWNvQo1GXSQhttps://www.youtube.com/c/free4khdvideosnocopyrightI use this to download from Youtube. There is a free version there.
https://www.4kdownload.com/products/videodownloader/10The effect in that video is achieved by reducing the opacity of one video in this case Doris Day's image so is just shows through,
I was given a copy of Sony Vegas 14 Pro and that has some interesting effects available in it, but rather complicated to get your head around so
I only use the ones that I feel are necessary in the video.
Hope this helps, All the Best, Brian007