Functions and Conventions of opening sequence

This will help me when making the opening sequence to ensure is has all these elements of functions and conventions. Also specially considering our opening sequence will be action, we can therefore relate to these opening sequence I have analysed.
The main functions of an opening sequence are:

• Establishing the genre
• Introduction to main characters
• Introduction to setting
• Theme music
• Setting enigma among the audience
• set up an equilibrium of the story
• Inform the audience with context about the production of film (in credits)

What are the typical convetions of an opening sequence?

• Film title
• Opening credit
• Music theme
• Establishing shot                                                     
• Introduction of charachters

Examples of Opening sequences:

Similarities

• Casino Royale and Quantum of solace, both use a feel of animation of graphics
• All of them we get snippets of action or symbols that will appear throughout the film to get a feel of what the film will be like.
• They all have a main man we are introduced to the main character.
• Casino and Quantum both have a few opening credits
• They all have a themed music
• They all have titles
• All play around a theme; Casino theme is cards in casinos, Mission is gadgets and technology, Quantum is on women, desert and the sun.

Differences 

• Mission impossible is not animation or graphics
• Mission does not have opening credit just the title and one credit.
• The title font is more catching and detailed for Mission
• Mission uses a lot of close up shots so we don’t get the full image 

This will help me when making the opening sequence to ensure is has all these elements, specially considering our opening sequence will be action, we can therefore relate to these opening sequence.