The beauty of what we do is that we thread the needle between science and art to produce art. One can dwell on the science part of things - like focal lengths, DoF, HMIs, Tungstens, types of mics, filters, presets, NLEs, etc. But in the end we are trying to produce art that will evoke a certain emotional response (hopefully while making a statement of some sort) within our target audience(s). This is where understanding the work of the art (or artists) who have inspired your efforts comes into play. I like to look at it as using the technology (science) as tools to augment my artistic expression(s) - using technology as a means to an end. So one can get bogged down in the specs of a given piece of technology (and if you are a cinematographer or aspire to be one that is the kind of minutiae that you can get lost in) as the direct route to a result, or you can use the technology to augment your artistic skill set(s) execute your vision - to make art. (I am not having a go at cinematographers as "tech heads" only, as they are students of art themselves, perhaps more so than most directors they work with.) From where I sit I cannot say there is a "right" or "wrong" way as it is different strokes for different folks. Some directors (Ang Lee) are very technical while others are not. In the end though they all arrive at the same place - a great movie in which they entertain, emote and get a message across.
The thing is, I refrained from using the phrase "film look" and just went with "the look" instead to avoid getting caught up in the very difficult effort of making video look like film. I am a newb and could be wrong on this (please educate me if I am, if not for my sake but for the sake of my fellow newbs) but even with the best technologies available there is still a gap between film and video. So striving to get the "film look" is not something that is easy to do, especially on an Indie budget. So why let that little fact get in the way of your great movie? Why let it kill your awesome story?
I am not saying don't try to emulate film, but remember you are an artist whose primary duty is to the art itself - in this case your story. You have the responsibility of making a movie (I did not say film or video, I said movie) in which your goal is to grab the attention of your target audience(s), entertain them, manipulate them, tell them a message all within the confines of your story. As Indie movie makers we work within the very stretches of limitations. We are the ones who said we can, when the establishment said we cannot. So use what you have and use it well. When the technological cap hits you don't let it impact your artistic abilities, your imaginations. Some of the best classics out there today did not use the technology we have at our disposal today.
So when you are shooting for a certain "look" using that simple zoom lens on your available camcorder or DSLR use your tool as the viewfinder and try and get the look that best suits your art's needs, your story's needs without getting caught up in the focal length of a prime lens that you don't have. Don't be shy to reference the pros but don't let your technological limitations limit or kill what you can do. Look in that viewfinder or at that LCD screen and if you look intently and know what you want you just might find "right" look for your movie at the right focal length at your disposal.