Billings Analysis

I am going to look at 3 different billings from "Blade Runner", "L.A Confidential" and "Memento".

After looking at and analysing these 3 billings, I have noticed that they all include the same information, and mostly display the information the the same order.
Here is the order:

1. The production company or companies
2. Name of director
3. Name of main actors
4. Name of film
5. Names of important crew members, including who wrote the screenplay, the executive and co-producer, music composer, visual effects artist, editor and more
6. Producers name
7. Directors name again

The billing may not always be in this particular order, but now I know what to include and roughly in what order.