1980's film clue - A TRIO OF MALE SHEEP WITH RIBBONS
1990's film clue - COVERS MS ROBINSON IN BITUMEN
2000'S film clue - INJURED BY A DEMENTED POSH COOKER
2010's film clue - CONVEY THE BLOK TO ARISTOTLE
Thank you all very much; very clever.
I've just realised I've got one more to go to finish 50 titles.
1950's film clue - JONG-IL OR JONG-UN?
Thought it was Father and Son but that is a 1980's film