How to make a game teaser for my game ?

I’m a indie game developer need to make a game teaser for my game, but i don’t know where to start. I have complete game art assets modeled in Maya. Now i want to make a teaser on my game, I can create teasers in adobe aftereffects but i want to make a teaser like butterfly effect (The Butterfly Effect - Unity Realtime Rendering Short film - YouTube).

Is there any way to make a teaser in unity ?

You can use the animator