This ought to be pretty easy! 
I'll name a series of 15 actors. The next person has to: 1) Guess which director they all worked with, and then: 2) Give the next list of actors. After which: 3) The person after that needs to guess the director the previous person's list of actors worked with. And so on and so on, etcetera, etcetera, ad nausem, ad infinitum...
I'll start off with an easy one...
Jack Nicholson
Peter Sellers
Malcolm McDowell
Sue Lyon
Kirk Douglas
Vincent D'Onofrio
Nicole Kidman
Joe Turkel
Murray Melvin
Laurence Olivier
Sterling Hayden
Marisa Berenson
Gary Lockwood
Lee Ermey
Scatman Crothers
Now then, which director did all these actors work for?

I'll name a series of 15 actors. The next person has to: 1) Guess which director they all worked with, and then: 2) Give the next list of actors. After which: 3) The person after that needs to guess the director the previous person's list of actors worked with. And so on and so on, etcetera, etcetera, ad nausem, ad infinitum...

I'll start off with an easy one...

Jack Nicholson
Peter Sellers
Malcolm McDowell
Sue Lyon
Kirk Douglas
Vincent D'Onofrio
Nicole Kidman
Joe Turkel
Murray Melvin
Laurence Olivier
Sterling Hayden
Marisa Berenson
Gary Lockwood
Lee Ermey
Scatman Crothers
Now then, which director did all these actors work for?