Neville Brody; the designer of album covers, film titles and in magazines such as 'The Face' has explained that what makes a good film font is "Fonts that convey an emotion without actually having to say the words."
The title sequence is a crucial part of film, giving away a clue of what the movie is about.
ROCKY - Franklin Gothic Heavy
The style of the title "ROCKY" reflects upon elements within the movie. The text is 'big', 'bold', 'broad', 'simple' imitating upon the main character "Rocky the boxer". The style of the movie is sans-serif 'punching' out the title. This is more commonly used in comedies, action movies, and anything else that is ordinary - day to day life for most people. It is a more friendly informal text. This can supposedly echo the type of social class that the movie will be based on.