Memento
he kept wearing the same suit because he refuses to step outside the loop he created for himself. he kept wearing the same suit to hold on what he cannot remember. he kept wearing the same suit to preserve his identity as a grieving husband with a mission. he kept wearing the SAME suit because he did not want to believe that the case had already been solved and he would lose his only purpose on life :[
oh My christopher nolan Your reverse chronology was BRILLIANTLY executed