CREATE TABLE table_74141 ("#" FLOAT, "No." FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Viewers" FLOAT, "Original airdate" CLOB, "Prod. code" FLOAT)

what is the total number of films directy and written by john callaghan?
SELECT COUNT("Directed by") FROM table_74141 WHERE "Written by" = 'John Callaghan'
SELECT COUNT("Directed by") FROM "table_74141" WHERE "Written by" = 'John Callaghan'