Editing footage for trailer

On thursday, in our next lesson we uploaded our footage that we had filed over the weekend to the Apple Mac Computer, in the previous lesson we had chosen the clips that we had wanted to use, as we had filmed at least five takes of the same scene so that we would have a selection of clips to chose from, when we watched them back we found that in some the camera was far too shaky, or cut out the characters head. We uploaded the chosen clips and started to edit them we cut the clips to ensure that they did not run on too long and we changed the scenes that we to be shown as flashbacks in the trailer to black and white to do this we changed the bringhtness, contrast and exposure. This was done to make the clips look older to make it seem to the viewer taht the clips that they were seeing were from the past.