If they've got a camera shooting 35mm motion film then thats going to be a seriously complex/expensive camera as shooting 4 perf 35mm is very expensive as you would expect from it being used to shoot the majority of major films (e,g a 400' magazine of Kodak film costs about £150 [not including processing] and lasts about 4 minutes), are you sure it wasn't 16mm or 8mm that she meant as that would be more what I would expect?
Whilst a lot of the time problems can be sorted out fairly simply, for most older cine cameras the problem is getting parts. Could you get some more detail?