If you are a volunteer and just giving away your work, it wouldn’t be considered commercial use. Clearly if this is your work and you are getting paid for it, your use would be considered commercial. If you really can’t determine whether your use of SketchUp would be considered commercial or not, you should get some legal counsel.
What about for educational purposes? For example a film made in university but later down the line one that could be potentially submitted for festivals
As I said, I’m not a lawyer, nor do I work for SketchUp. If you get paid for the work you are doing right now, the work should be done on a pro version.
Educational licenses also have the restriction (no commercial activities)
As for getting paid or not, that actually doesn’t matter, it’s more the intention, which evidently, is spoken out right now…
Regardless of how many examples may be given, non of the answers here(Official Sketchup members or not) won’t stand in court.
That said, I have never seen Trimble go to trial for misusage of SketchUp, though.
If this is the case, I would recommend looking at rolling the price of sketchup into the overall equipment costs for making a film (cameras, computers, sound etc). If the intention is to submit to film festivals, it is basically a commercial endeavor. But like others, I’m not a lawyer and can’t say for sure.