So what is a title sequence?

A title sequence is the introduction to a film which often states the main cast members and production company,as well as the director and any important members of the production. It is the films opportunity to make a good first impression on the audience so that they are gripped from the very beginning.Over the past couple of decades film makers have tried to make there title sequences as aesthetically interesting and unconventional as possible. 

Conventionally a title sequence will include cast and crew members names,the title of the film

The history of title sequences

During the early days of cinema, title sequences were often purely informational and had very minimal aesthetics,if any at all. That started to change with the introduction of film with sound,when visually interesting montages and prologues were derived. By the 1960s, they became an art form, especially with the establishment of the iconic graphic designer Saul Bass. Above is an example of a simple title sequence from the 1940's.