@arminunruh thank you for your response.
I will try it. Even though it means a lot of work because I now have to create a unique page for every single video.
With having several directors and many videos on our homepage this obviously is quite a hustle.
Maybe it would be an option to create an add-on to have the possibility to just drop a link into a player and then the video coming from vimeo or youtoube or uploaded is being shown as a pop up like it already works with fotos in the lightbox add on.
I will check out your approach and see if it woks for us.
Thank you.