Hi, I’d like to have video - animations showing up during a game. Cinematic - this is right word I think 
So I’ve found only this short and old tutorial about using Java script, but maybe now there is other way to do this?
I thought that maybe this action “Open URL (or file)” could be proper but I don’t know how to upload video file.
Any help? Please 
I figured out this for now:
Make an animated object (animation uploaded as frames) which is hidden on the beginning of scene. When player hits other special obj, animation shows up and play, and when animation is finished is hidden again.
Simple and maybe enough for me- unless you have more professional or better methods