This is so basic that I can't imagine it isn't possible to do. Instead of automatically naming all of my iMovie App projects by date, I want to give them meaningful names. Can I really not do this? When I edit my movies, I typically add a black slug at the beginning so they can fade from black. This means that the automatic thumbnail used on the project page is black. If I take multiple movies in a day, then I have multiple black thumbnails with the same date and no way to tell them apart without opening them. If even I could choose my own thumbnail image I would be happy.