When I read the name, I drew a blank. He has an IMDb page, is an 'expert' and writes books. Awesome.
The term 'film' was used. Infrared film has been out of production for many years. People hoard film in deep freezers. Time will tell. Infrared and false color infrared film need light sources. Infrared film can be used in daylight and at night with auxiliary lighting. We know so well that Sasquatch avoid lights. False color infrared film is a daylight film.
Currently, one can buy 400' of 16mm false color IR film for $3,500.00 off of ebay. Poorly stored 35mm IR film is also available on ebay.
The caveat for 'the bunch of researchers' is who is going to develop the film? The developing question brings up the old 'damaged in processing failure'.
The question is, what film did they use?
There is a positive note about 'the bunch of researchers'. They are their own producers, directors, cinematographers and sound guys so that means they can blow smoke up their own asses.
I am not being mean. We have seen the 'wait for it' posts before. Social media activity instead of being quiet, completing the work and then presenting a finished product.