Hi, Could you contact me, please, via my profile page?

Hi, this file did not contain the alpha channel previously. Footage can be composited over any image or video using screen or add blending mode. I’ve just updated the main file (just re-download the file). The file with the alpha channel was added to the archive. Please use Sparks_With_Alpha_PNG.mov if you need a file with an alpha channel. This file was saved with PNG codec.
Best Regards!
Stevepfx

Thank you Official_sUP

Thank’s Maxoon