How long? Is he a really, really slow writer?

Video releases are longer than stills releases, but even so... get your ID shots (all photo IDs) and then the girls sign the paperwork and you get your witness (you'll need someone who isn't you a a witness btw) to fill in their section. Can't see how that would take a couple of hours. Yes, there's more paperwork with video (and you'll want to take copies of their tests certs etc.) but you'd need ADHD for it to take that long.

He may have meant you'd need an hour or two to round the girls up, organize them all so they all have their IDs and tests etc. That could take time, knowing performers.