CREATE TABLE table_18220102_1 (number_of_screening VARCHAR2, opening_film VARCHAR2)

How many number of screenings have an opening film of the journey of vaan nguyen?
SELECT COUNT(number_of_screening) FROM table_18220102_1 WHERE opening_film = "The Journey of Vaan Nguyen"
SELECT COUNT("number_of_screening") FROM "table_18220102_1" WHERE "The Journey of Vaan Nguyen" = "opening_film"