CREATE TABLE table_name_15 (writer VARCHAR(255), title VARCHAR(255), year VARCHAR(255), notes VARCHAR(255))
Who is the writer of Wallace & Gromit: A Close Shave, a short film from before 2008?
    
SQL: SELECT writer FROM table_name_15 WHERE year < 2008 AND notes = "short film" AND title = "wallace & gromit: a close shave"