Hi, is it possible for a curtain to open and the Movie to start immediately in a transition?

What type of curtains do you have?

I probably expressed myself incorrectly. I digitally created a curtain that is transparent when opened. Now I wanted to insert the video bumper so that the film starts while the curtain opens. Unfortunately, the clip runs through and only then does the film start.

Gotcha.

The videos can't overlap easily. I think there's a way to do it, but it would require a lot of steps outside of Preshow and isn't something I know how to do.

My recommendation to create that sort of the experience is to make a title slide or theater/feature intro and edit the curtain transition in with that so that you have that video play and fade to black and then the movie starts.