Super-8 has a very distinctive look to it, even using the more modern filmstocks. Would this look be appropriate for your film?
With film, you'll definitely have to bone up on your audio needs. If your camera is not sound-sync'd, you'll need knopw how to deal with audio being recorded at one fixed speed while the film speed will vary somewhat.
You'll need to decide on what filmstock has the look you need, where you'll have it processed, where you'll have it digitised to edit (it may or may not be the same place where it's processed), the cost of the harddrive onto which the film gets digitised, any minimum-charge costs that the lab may have... and probably some more.
Are you proficient with a light-meter? One of those will come in very handy.
Oh, and unlike tape or digital files - you can't rewind film and do the take again if it's not to your liking. You'll need more film than the estimated finished run-time. A minimum shooting ratio of 3 to 1 is probably the minimal to get away with. Add that to your costs.
Just rambling right now. If you're willing to spend the bux on shooting film (and it doesn't need to be *that* expensive), keep in mind that a camera is only part of the puzzle when putting together the look of film. Access to lights & light control will help take any camera to the next level.
But yeah, there's a few things to think about.
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