CREATE TABLE table_72991 ("Year" FLOAT, "Date  ( Opening ) " CLOB, "Date  ( Closing ) " CLOB, "Opening Film" CLOB, "Number of Screening" CLOB, "Award-Winning Film" CLOB)

How many number of screenings have an opening film of the journey of vaan nguyen?
SELECT COUNT("Number of Screening") FROM table_72991 WHERE "Opening Film" = 'The Journey of Vaan Nguyen'
SELECT COUNT("Number of Screening") FROM "table_72991" WHERE "Opening Film" = 'The Journey of Vaan Nguyen'