Load scene transistions

Some games have really smooth transitions for scenes. For example, you might walk up to a door, the door has an unlocking animation as the game is loading the next scene. How might this look in Unity?

What I am trying to achieve is one fluid motion when a player selects a level from the level select screen the menu fades, the camera pans around to focus on the character (this is as far as I have gotten) and in this rotation it loads the selected scene. Once the camera is squared on the player it automatically starts playing (this too I have accomplished).

This link might help youlink text