Thanks for your quick reply Cory.
is the the setting under the AE Preferences> Import> Interpret Unlabeled Alpha As : Straight (Unmatted)
i tired put the setting as Straight or premultiplied and select the footage(mov file) and File>Interpret Footage> Main
all of the setting on Aplha was gray out.
anyway to change the mov file type from JPEG to PNG. I only have that mov file.
Sorry, I’m a very beginner for AE. Im trying to finish the slideshow before the wedding day.