The following film directors have shown an interest in John or chose to work with him directly.

Mike Alexander
Peter Barber-Fleming
Tom Corcoran
[Don Coutts]
Janet Fraser Crook
Cari Hamblett
Christopher Hanson
Stefano Incerti
Sidney Lumet
Royston Mayo
Lyn McMullan
Roger Michell
John Mills
Anthony Minghella
Steve Poole
Marisa Silver
Ebsen Storm
Colin Strong