One of the members of my website, http://starryid.com, is going to film this short film script. Any ideas most welcome 
Num Num
EXT DAY OUTSIDE A CAVE
Sfx: wild forest sounds, didgeridooos, monkeys, birds. Heavy breathing.
CCTV footage of a figure in the distance.
CUT TO:
INT. DAY: INSIDE CAVE
Two young men are looking at the TV monitor and giggling.
CUT TO:
EXT. DAY -OUTSIDE CAVE
A bearded historian/explorer type creeps towards a cave. His mouth is open in awe of this wondrous site. He clutches a copy of an old BOOK entitled, 'The Lost Tribe of Num Num'. He holds the book up stiffly. It shows two hairy cavemen wielding a butternut squash. He smiles to himself and creeps forward, breathing heavily.
CUT TO:
INT. DAY: INSIDE CAVE
Gavin (assertive, jumpy) is squinting at Bruce (confused, slow).
GAVIN:
What's the book?
BRUCE
Is it Harry Potter?
GAVIN:
No, lard for brains. ooh, it's OUR book. Bingo!
The CCTV zooms in on the cover of the book.
BRUCE
(off camera) Have we got a book called 'Bingo'?
Gavin looks horrified by his stupidity. He pauses the screen on a close up of the book.
Montage sequence of Bruce and Gavin hastily dressing up to look like the cave man depicted on the cover of the book. The bearded historian gets closer. Bruce puts the false beard on his head. Gavin adjusts it impatiently. Bruce falls over getting into the skin costume.
As the historian approaches, they leave the part of the cave with the TV and enter the deserted part of the cave. As the historian walks in, open mouthed, they pose to resemble to picture, adjusting the position of the butternut squash.
HISTORIAN (BREATHLESSLY)
Num Num!
Bruce and Gavin look at each other. Gavin nods as Bruce stares blankly and gnaws the butternut squash, which he then spits out.
BRUC AND GAVIN
Num Num.
Bruce hands the historian the butternut squash and nods encouragingly. The historian takes a nibble.
FADE TO WHITE:
SFX: DRUMS AND CRAZY BANGING AND HUMMING SOUNDS.
The historian is dressed only in his underpants, dancing wildly, as the hallucinogenic vegetable takes effect. They all chant 'Num Num!!' Over the humming, drumming, whooping and banging. The historian is lost in the moment, covered in bodypaint.
FADE TO WHITE:
INT. NIGHT. THE CAVE
Gavin and Bruce are watching the footage of the night before on YouTube. The video is entitled, 'Num Num Party Num-Num-ber 33'. They are laughing their heads off.
FADE TO:
EXT DAY OUTSIDE A CAVE
A woman with a dog finds the historian lying in the leaves.Ax The dog sniffs him and the woman gawps at the hideous site of a nearly naked, bodypainted man, the historian slowly picks up his book and rises up.
HISTORIAN (POINTING THE THE BOOK)
Num Num.
FADE TO BLACK.
SFX: POLICE SIRENS. Sound of a struggle. One voice says, 'Got a flasher here, then the voice of the historian, 'Num Num'. Then, 'What's yer name then?', followed by 'Num Num'.
Fade out.