Analysing a Title Sequence - X-Men: First Class

So, the title sequence I will be analysing, is from the film, "X-Men: First Class".
The title immediately starts out with the director's name, in this case it's Matthew Vaughn, which is odd because it is normally the producer or production company that's name is shown first. Second, has the screenplay writers, which is also odd since the second name(s) that are shown are the "highest billing" like the director or actors (depends who's more famous). The 3rd set of text is who wrote the story, which is still odd and uncommon in title sequences. We next get onto the producers and then the executive producers. Then, it gets into the crew like associate producers, film editors, music composer, costume and so on. Finally it gets onto the cast which starts with James McAvoy who plays Xavier which is a lead role in this film. The cast's names go on and are shown individually until it says "and Kevin Bacon". After, the names of the cast are displayed as a group of names which can tell you that these are just co-stars that play characters that aren't too important to the story. Then gets onto production company, then "a Matthew Vaughn film" and ends with the title of the film.