What is the percentage of male characters in the movie "Bride Wars"?
male refers to gender = 'Male'; "Bride Wars" refers to title = 'Bride Wars'; percentage = divide(sum(gender = 'Male'), count(gender)) * 100 as percentage
SELECT CAST(COUNT(CASE WHEN T3.gender = 'Male' THEN 1 ELSE NULL END) AS REAL) * 100 / COUNT(T3.gender) FROM movie AS T1 INNER JOIN movie_cast AS T2 ON T1.movie_id = T2.movie_id INNER JOIN gender AS T3 ON T2.gender_id = T3.gender_id WHERE T1.title = 'Bride Wars'