Conventions of a film trailer

Usually within the first part of trailers it will clearly show the institutions. They show the film production logo so that it creates an idea of the type of film the trailer is trying to sell. For example 'Dreamworks'. People will instantly know that they have a big reputation of creating family friendly films. The film title is in every trailer so you know what film it is that you want to watch. Sometimes they add the title in the end of the trailer so that you are more likely to remember it. As an audience they always have an idea of what the genre is and roughly have an idea of what the film is about. For example in the Hangover we have an idea that it is a comedy due to the font, colouring, and backdrop that they use. 

The film trailer that I watched was Kick Ass and the titles that they used looked comedic and bright colours were used. Whereas some horror films would have a black background and then white font which clearly shows it is based on a horror. 

Another key feature would be the music. By using the music it gives the audience an idea of what the genre and what the film trailer is about. Voice overs are mostly used in some film trailers and this is important to use because it would guide the audience throughout the film. The voice can be used on top of the footage. The voiceover can also be from sections of a dialogue. 

In every trailer they would use name captions and the captions that they use are either director names, producers names, quotes from the film and the release date. Personally I think that it is important to include the producers and directors name because some people may have a favourite producer. Which means that they will be more inspired to watch the film trailer.
Usually a film trailer would be rougly 1 minute 30 or up to 2 minutes long. But if it is a horror trailer it would be 10 seconds shorter this is because they wouldn't give too much away of the storyline. They also don't show as many titles. 
We watched many romance trailers so it gave us an idea of the duration of trailers. This then gave us an idea of how long our trailer needed to be. The time that myself and my group decided was 1 minute and 50 seconds. 
For our trailer we decided that we were going to have our title of our film which is 'Love The Second Time Round' then we were going to show each clip and then in between our clips we were going to show tag lines. Which would hint the story line to our audience. Sticking to the conventions of a trailer we were going to also include the character names, producers and directors. Also the release date will also need to be included within our film trailer.