I created this trailer for the hungry caterpillar using the iMovie app for creating trailers. It involved planning each picture and caption. I think this tool would be useful for a teacher to use to encourage children to read certain books or to engage them with a certain topic. Or this app would be an excellent tool for the children to create trailers as it is a very simple app, and the process would involve planning, sequencing and give the child a sense of ownership once creating the finished product. There are also planning sheets available for making iMovie trailers which could be used with children before they create their trailer found here : http://learninginhand.com/blog/2014/8/6/plan-a-better-imovie-trailer-with-these-pdfs