Creating Interactive Film With Unity?

Would It be possible to create an interactive film with unity??
For example, i would like features such as quick time events (use as to press a button in a certain time, weather the user does or not will lead to a different clip), choosing the dialogue the character says, mini games etc.
Its kinda like the walking dead game but with live footage.
Would this be possible?? I am also considering using flash.

I know its a game engine, but that doesn’t mean it can handle 1080p videos files.
This is possible then?