Generally, however, it’s recommended that you create your trailer project after your movie project is complete. You can also create movie trailers in iMovie.

Select the Automatically Add check box and click the pop-up menu to choose the desired effect. However, if you want to add transitions and titles manually, click the Automatically Add Transitions and Titles check box to deselect it.) If you decide not to use a theme (by selecting the None thumbnail), iMovie can still add an automatic effect between clips. If you choose a theme, iMovie automatically adds the transitions and titles that correspond to that theme. Click a Project Theme thumbnail to select a theme to apply to your finished movie.However, you can choose a slower frame rate if necessary, such as the 25-fps setting for the international PAL and SECAM video standards.

The default frame rate is 30 frames per second (fps), which is normal for the North American NTSC video standard. On the flip side, choosing 4:3 results in pillar boxing (black bars on the left and right) when shown on an HD set. If you’re shooting in 16:9 format, choosing 16:9 for an SDTV set will result in those familiar black letterbox bars at the top and bottom of the screen, but you won’t lose any content from the sides of the frame if you use 16:9. If compatibility with the familiar SDTV (standard definition TV) format is important, choose the standard (4:3) ratio. You can select a widescreen display (16:9), a standard display (4:3), or a display especially suited for an iPhone (3:2).

Select the aspect ratio (or screen dimensions) for your movie.

Choose File → New Project (or press cmd +N).

Follow the painstaking steps below to create a new movie project: (It looks like a star on the Hollywood Walk of Fame.) You can also run Launchpad and click the iMovie icon there.

To start iMovie, click the iMovie icon in the Dock. However, in iMovie, all the controls you need are easy to use and logically placeable. If you have ever tried a professional-level video editing application on your MacBook, you may feel a headache.

How to add video to imovie