The document discusses how three thriller film titles sequences establish key elements:
1. In Zodiac, theme, genre, tone and mood are set through rushed pacing, an intense soundtrack, and crowded shots. Character is introduced through the main character's morning routine with his son.
2. Seven uses an irregular title font and flashing text to set its horror genre. Mood is set through an unsettling soundtrack. Ambiguous images hint at the plot involving murders and an investigation.
3. Outbreak clearly states its location and establishes character through costumes. Its busy hospital setting and focus on medicine set the theme and tone. Explosions emphasize the impact of potential disease outbreaks.