Pretty+baby+1978+okru

Wait, "okru" could be a misspelling of "oku", which in Korean means "million", but that might not relate. Alternatively, could it be a reference to something specific in the film's production or themes? Maybe the user meant "O.K. Ru" as in a character or a term? Alternatively, maybe "OKRU" is an anagram. Let me think. "O.K. Ru" doesn't ring a bell. Perhaps it's a Russian term? "OK" in Russian is "oko", but "OKRU" might not be a direct translation.