Behind the scenes with iMovie trailers | Macworld: iMovie may not have the flashiest updates of the bunch, but it does gain a neat new feature from iMovie ’11 on the Mac: movie trailers. Now, when creating a new project, you can choose to instead create a trailer with one of nine different templates: Retro, Romance, Scary, Superhero, Swashbuckler, Narrative, Fairy Tale, Expedition, or Bollywood. You can swipe through and preview these for a better idea of what the trailer formats are like—be prepared for child spies and adventuring backpackers.