Can you think of examples of bad movies or progs which seemed to have a brilliant cast and a brilliant scriptwriter (or was the adaption of a brilliant book)?
Examples could be The Magic Christian starring Peter Sellers and written by John Cleese, just too psychedelic; Piccadilly Jim whose cast featured Hugh Bonneville and was written by Julian Fellowes; on the small screen you had The Royal Bodyguard with David Jason and Geoffrey Whitehead, written by the same bod who did The Worst Week Of My Life.