Drama film relies on the emotional and relational development of realistic characters dealing with intense, real life issues like abuse, loneliness, and how these affect people. Drama has several sub-genres that explore different themes - Biography chronicles a person's life, Courtroom drama uses the justice system, Dramedy balances drama and comedy, Historical examines a specific time period, Melodrama appeals to heightened emotions, Romance explores complex love facing obstacles, and Tragedy shows a character's downfall due to their own flaws.