You needed 47 last year for an a* so you were able to drop 13 marks.
Basically, you need to have a pitch planned out. Include Title and the connotations of that title. Running time and launch date, and why. Narrative (Follow todrovs theory, google if you do not know this.) Character profiles and proposed actors, this is important as the pre release hinted this to be important. Distribution (remember, if you are aqa and have the same pre release as me, you have a low budget as you are an indie film company- focus on online marketing!!!) exhibition. Tag line is important and the connotations of that.
There will be two knowledge questions. Know 3 indie films and 3 other films (family, big blockbuster, eg.) like youtube scences from them and write about the mise en scene (like props and costumes) and the shots and stuff. Know facts like director and budgets and what they earned at box office
and obviously theres always a drawing section so have a website (think its likely to be that) storyboard for trailer and opening scenes, poster, dvd cover planned out!
hope i helped a bit