Create an intro in unity

Hello, is there any video tutorials on how to create an intro scene in unity, just like Unity Sample Particles Callback.

Just make a scene that loads first. Do your intro stuff. Then load the main scene.

Typically I do this via a coroutine.

void Start (){
    StartCoroutine(Intro());
}

IEnumerator Intro (){
    // Do intro stuff. Play animations, move gameobjects, load preloaders ect
    yield return new WaitForSeconds(10); // Or however long you want
    Application.LoadLevel(1);

}