The order of the titles in the opening title sequence of a film is determined by order of importance. For minimal titles and maximum titles there still needs to be a clear order of relativity.After the title of the film, the lead cast is named separately and any minor characters may be placed together. From there the importance of roles is reversed and the credits work backwards to the writers and director.

ORDER OF OPENING CREDITS
- Distributor/DISTRIBUTION COMPANY 
- Producer/PRODUCTION COMPANY 
- a NAME LASTNAME film 
- TITLE
- Lead Cast
- Supporting Cast
- Casting Director
- Music Composer
- Costume Designer
- Associate Producers
- Editor
- Production Designer
- Director of Photography
- Executive Producer
- Producer
- Writers
- Director 

 The order of these is vital in order to get the point across to the audience and film critics.