Strange Ridley Scott film (5)
I believe the answer is:
alien
I believe this clue is a double definition.
'strange' is the first definition.
(synonyms)
'ridley scott film' is the second definition.
(I've seen this in another clue)
(Other definitions for alien that I've seen before include "Little green man, perhaps" , "exciting film based in space" , "Stranger" , "immigrant" , "of foreigners" .)