Conventions of teaser trailers

Now I have looked at teaser trailers I made a list of all conventions that I have found. I have found that regardless of the genre, they all contain the same conventions. 

• Title of film 
• Release date 
• Social media 
• Voice over man 
• Quick editing 
• Tagline 
• Eyecandy 
• A variety of camera shots 
• Music 
• Sound effects 
• Possible reference to other films 
• Images from film 
• Production logo  
• Names of actors