Dramatic irony is a stylistic device that is usually found in plays, movies, in poetry. Narrators use this irony as a useful plot device for creating situations in which the audience knows more about the situations or the causes of conflicts, and their resolutions before the leading characters or actors. That is why readers observe that the speech of actors takes on unusual meanings.
For instance, the audience knows that a character is going to be killed, or will make a decision to commit suicide. However, one particular character or others may not be aware of these facts. Therefore, the words and actions of other characters would suggest a different meaning to the audience from what they indicate to the characters and the story. Thus, it creates intense suspense and humor. This speech device also emphasizes, enhances, and conveys emotions and moods more effectively.
The suspense technique of dramatic irony is best described by:
The screenwriter lets the audience know something the main character does not, usually something important to the plot.