Cameras n HD

Theres a big difference between using 16mm and HD. For the purposes of making a movie, even 16mm film has better 'resolution' than all but the most expensive HD cameras. When it comes to rental costs, HD equipment (especially the decks) can be a lot more expensive than film equipment. But tapes (or hard drives) are cheaper than film (purchase and developing costs). You have to weigh the expense of developing film against how much footage you plan to shoot. If you want to end up with a film print that can be projected (there are still too few digital projectors out there, although a lot of major festivals now have at least one), you'll have to pay an expensive blow-up cost to transfer your final digital cut to film. In most cases, it won't look as nice as it would if you'd shot on film in the first place. Some movies shoot on film and finish to HD. But assuming that you only want to sell your movie to the HD TV channels and sell on DVD and the Blu-Ray, HD is beginning to make good business sense. It takes a rare filmmaker to give up on seeing his or her masterpiece on film. But when a theatrical release isn't in the cards, HD is the optimum choice.
Because it's so expensive, movies like Dead Man's Shoes will not use HD as they work on a lower budget and the benefits will be low.
High End Camera equipment - RED one is aimed to be a highly-flexible camera thats capable of high end imaging.