In Christopher Nolan's The Dark Knight, Harvey Dent starts off with a double headed coin, which then gets turned into having two different sides when he becomes. Two-Face's Coin As you doubtless noticed, Harvey Dent "makes his own luck" through use of a rare two-headed coin. The explosion that turns him into Two-Face. Batman Harvey Dent Two Face Double Headed Dark Knight Novelty Coin With Damage Side. RowlandPSmith. 5 out of 5 stars (). $ Add to Favorites.