The trailer I used was 'Bridget Jone's Diary- The Edge of Reason' which is posted onto my blog when I originally noted the key conventions. I listed a few conventions down that I really wanted to use and develop in my trailer.
*There was easy, feel good music at the beginning of the trailer
*The characters voice over appeared before the main voice over
*After the production company and distribution team e.g. Universal, there is a change of music
*There is a montage in the middle of the trailer with short 'teaser' shots of what the film might contain and be about. There is a voice over on top to explain what the main plot of the actual film is about
*The music changes continuously in a romantic comedy trailer. This would be to keep the interest of the audience. The new music also applies to what is happening on the screen.
*The main cast list can be heard by the voice over whilst there is action on screen
*There are no fades within a romantic comedy trailer they dissolve into the next shot.
The conventions I have listed are all the ones I used in my own trailer. Below I have briefly explained other conventions I noted and why I did things the way I did. I have done a voice over onto the work I have produced. Unfortunately I was unable to keep the voice over as it sounded too complicated to listen to. However, I have uploaded a final version in another blog which you can listen to.
As my teaser trailer is short I shall now explain, further, why I chose particular conventions and forms to develop into my own new trailer.
Earlier in the process I created a mood board of images from previous romantic comedies. In this I noticed that to create a conventional trailer I needed to use very pastely shades when constructing costumes, especially for the protagonist. On the left you can see screen shots I have taken and placed in my own mood board to show how the colours set the feel for the film. The pictures are not dark, like a horror trailer mood board would be. Instantly an audience can see it is of a lighter hearted genre- a comedy or romantic comedy. Sometimes I had to go against the conventions due to weather conditions in December time and allowed my cast to wear coats. However, the clear day and sun light cancelled the darkness of the costume out. I also noticed that in a romantic comedy trailer it only ever rains when someone is upset. Luckily in my trailer the weather held out so I was able to keep the upbeat feel to the trailer when we shot scenes outside.
Music:
Music is a very important part of a romantic comedy trailer, or any trailer in fact. Therefore I wanted to get it completely right.
If you click the link above you will be able to watch one of the trailers I clearly chose conventions from, one being the music. I realised that a form for the music was that all the music was related to either the action on screen or the story itself. I was careful when developing this convention as with any trailer you want people to have ideas about the film but not know the entire plot. I think I have developed this well and picked good songs to appeal to my target market and fit with the action on screen.
Cuts:
After looking at many romantic comedy trailers I noticed that they used mainly cross dissolves and no fades like other trailers did. Therefore, in the editing process I used cross dissolves into the next shot. If you click the link below you will see that the director has chosen to dissolve each shot into the next...
I used this editing technique in my own work to keep the romantic comedy trailer conventional.
This convention is particularly important during the montage towards the end of the trailer. The short clips of what the film is about is compulsory to add to the drama and keep the audience interested without giving away the story. The cuts in this particular section needed to be slick and conventional. Therefore I continued to use the cross dissolve in the next shot so the scenes flowed even though they wouldn't necessarily appear linear in the film.
180 degree rule:

In my trailer this form is evident when the characters of Gracie and Justin are picking up the folder that Gracie had previously dropped. Even though it is a close up shot Gracie is always seen on the right and Justin is always on the left. The camera never crosses the imaginary axis to create a reverse angle.
Important camera angles: I wanted to use a variety of conventional camera angles that worked within the trailer. Below is a short video of my different camera angles explained and reasons as to why I changed some shots and didn't use them.
From the convention of using pastel tones and the lighting needing to be bright I wanted this to be the case. Therefore, some of the shots I had to get rid of because you couldn't see what the character was doing and it was unclear. But, also to stick to the convention of everything being bright and sunny in a romantic comedy trailer. As previously stated, it only ever rains in a romantic comedy when someone is crying!
Production and Distribution:
Even though my trailer has been made on a low budget with low definition cameras, I chose to produce and distribute my trailer with big film companies such as Universal and Mirimax.
The British film- Angus Thongs and Perfect Snogging is a low budget romantic comedy however they used big companies such as Paramount to help produce the film and Universal to help distribute the film globally to generate a profit. http://www.imdb.com/title/tt0963743/companycredits
I have chosen to stick to this particular convention that even though my trailer is of a low budget it would still be distributed globally by a major company; Universal.
Voice-over:
The voice over is something that I probably would change if I had the time to. It was the one convention I challenged but I feel it still works well.
The form I challenged in the voice over was having a female recording it. I did some research into why women are not given the chance to do voice overs on films. I found that it was because their voices can sometimes not be as persuasive or dominating as a male voice over.
However, in this day and age I think it is time women were given the chance to record a film voice over so in that case, if this trailer were to be made into a real film it would open up many opportunities for women in the voice over industry. I still think the voice over works because I used other conventions of a trailer voice over. I didn't use it all the way through, it tells of the themes, basic plot, cast and the name of the film. Moreover, there are many British films which use a British voice over. (Click the link below)
Therefore, even though I have challenged the convention of using a female voice over instead of a male voice over, I have still used other typical conventions of a voice over in a romantic comedy trailer.
As you can see I have used and developed nearly all of the possible forms and conventions I could use to make my trailer look and feel like a romantic comedy trailer. The convention I slightly challenged still works and doesn't affect the overall conventional romantic comedy trailer. It makes it a little innovative yet conventional.