| Get your screen credits right |
Most important - be sure to credit all the key roles on your film. Credit for the key heads of department should go to one person. There should be only be one director, and usually one producer and one writer.
If you need to credit someone else, give them a title such Associate Producer or Assistant Director. Extra writers can be credited under "Additional Story". Make sure you credit (at least) the following roles; Director, Director of Photography (DoP), Producer, Writer, Editor, Art Director, VFX Supervisor, Animation Director (or Head of Animation), CG Supervisor.
If you need to credit someone else, give them a title such Associate Producer or Assistant Director. Extra writers can be credited under "Additional Story". Make sure you credit (at least) the following roles; Director, Director of Photography (DoP), Producer, Writer, Editor, Art Director, VFX Supervisor, Animation Director (or Head of Animation), CG Supervisor.