Title Sequence

Titles and title cards can be distinguished as follows:

• A single title card contains one name credit. Typically used in opening titles to display the name of the lead actors and the creative people involved in the movie. Generally referred to as the above-the-line credits.
• A double title card contains two name credits. Typically is used to display the names of supporting actors and additional creative people involved in the movie.
• A triple title card contains three name credits. Typically used to display the names of additional supporting actors.
• A multiple title card contains more than three name credits. Typically used to name additional supporting actors or extras.
• A main title card displays the main title of the movie.
• Scrolling titles are titles that move sequentially in and out of frame, generally used as end titles.
• A lower third is a title placed on the lower-third of the screen (although there might be other screen placements you could consider), generally used to display the information—name and title—of a person being interviewed or a location.
• Subtitles are titles placed on the lower-third part of the screen (or sometimes on the top of the screen to avoid covering relevant information on-screen or previously existing lower thirds). These are generally used to translate dialogue in another language.
• Intertitles are title cards that display the time, place, prologue, or quotes. In silent films, an intertitle is often used to convey minimal dialogue or information that can’t be deduced from the talent’s body language or the scene’s settings.

- http://masteringfilm.com/giving-titles-to-the-types-of-titles/

The title sequence for 'Se7en' clearly inform the audience about the genre of the film. It uses cinematic features to subtly inform the audience about the serial killer even though he's not introduced until later on in the film. Features such as; quick editing, flashes of colour, the uncomfortable background noise, the scratched/flickering effect on the film and titles.

The title sequence for 'The Number 23' build tension with the use of music and the use of the number 23. It is clear that the number 23 has major importance  in the film and the director is making that obvious in the titles, as he links it to various historical events. Also the use of blood slowly covering the screen and an enigmatic element to the sequence.

The titles sequence for 'The Man With the Golden Arm' is one of the first films to be recognised for it's use of titles working with the actual film. The titles have lines jabbing into the screen at awkward angels, representing the needles that the addicted drug use punctures himself with. The lines also split the screen up to show how the man is stuck or trapped, we later learn the reasons for this in the film. However the titles sequence has real relevance to the film.