666 might be right considering the location of the rem/sync plugs. I have a 660 on the way and think it will be just fine. The 440 also looks pretty much identical. On the prop, they added an extra section on the top edge of the camera, opposite the handle edge, which looks a lot like the viewfinder cowl on a Canon 518, if it is not too wide.
I saw the movie, now, 5 times and did not see these macros used anywhere. I’m thinking they might have either been in a scene that was cut (which we might hopefully see later?) or an unused alternate for the Bell and Howell based ones that were used by Poe.