Title and Credit Sequences

Title Sequence

A title sequence (or opening credits) is the animation or visuals at the beginning of the film where the film company introduce the director, cast names and title of the film to the audience. This can either be done as an animation before the film starts or as visual images being printed on the screen during the action of the opening scene. A title sequence is used to advertise the film company, director and actors in order to attract and engage wider audiences; hence why title sequence are often shown or have clips on the trailer. The opening credits don't specify what actor will be playing what character, however due to their names appearing in the title sequence, this more often that not, alludes to them playing one of the main characters.
Title sequences, however, don't always solely introduce the cast and crew names, films such as Star Wars use the title sequence to introduce the plot and background to the plot so that the film can begin in almost medias res and have the audience hooked from the very beginning of the opening sequence. Star Wars' use of this title sequence is so iconic that fans all over will become and excited from the very beginning of the world famous symphony "Star Wars"

Credit Sequence

The Credit Sequence (a.k.a Closing credits or End credits) are the final credits in the film where all the cast and crew are credited and thanked for their help in the production of the film, the film company is additionally presented along with any special mentions or "thank yous" to any parent conglomerate companies or horizontally integrated subsidiaries. The closing credits either carry on the jolly upbeat music with most commonly the films iconic song to give a feel good factor, or in reverse to this contain eerie, spooky and uncomfortable music to maintain a horror films ambience and fright factor. Or it is a silent credit crawl where the names are presented. Differing from the opening sequence, the director and actors are paired with their role and character, so therefore if the audience preferred a particular character they could watch more films that the actors is in...or watch more of their films if they fancied the actor.