I can't export my movie because a file is missing, how can I find it?
I've spent ages making a movie and now it says cannot export because a movie file cannot be found. I have no idea what file this is! It says it is called 'Trim 1' but this doesn't appear to be any of my movie files. I did have some problems importing some movie files which then wouldn't show up - could this be the problem? And it says that without this file, the movie cannot play properly! How can I identify this file and delete it?