I would imagine he had a stylist to help him dress properly for movie promo appearances, make sure he wasn't wearing really loud shirts and such.
Now that the movie promo is over, it'll be interesting to see if he reverts back to a less polished look.
"There was this one time an alarm went off - it was in the middle of '24.' That's just wrong. Everyone knows everyone was watching '24' at that time."
--NYU student quoted in the Washington Square News about students ignoring the frequent fire alarms in dorms