well, in a nutshell, to achieve a film look, you need a 8/16/35mm film camera with real film. These days, lots of video camcorders (consumer, prosumer) boasts the ability of 'replicating' that film look to no avail. In my own personal research & experience, I've found that the perceived appearance of film (from DVD or Cinema) can be contributed to these factors :-
- the elusive depth of field
- true wide format (16:9)
- progressive scan (pref 24p / 25p)
- that 'color' or many ppl refers to as cine gamma (also lighting of the scene)
Therefore, if you were to use a standard prosumer DV or HD camcorders for your shooting medium, get a true 24p camera (ie: Panasonic AG-DVX100 for SD or my dream camera the Panasonic AG-DVX200 for HD) and of course shoot at 24p. Next get a proper lens converter such as the redrock M2 or P+S and use your current nikon or canon lenses to achieve that shallow dept of field look. Next, get a proper matte box with follow focus and grip (you have a brilliant camera, you need a proper light hood to shield stray light from your shoots, the follow focus is for smooth 'film-like' pull or rack focus type shot). All these with natural light and properly set gamma setting can give you decent quality output (you probably need lighting equipment for difficult situation or for a specific look you are after).