iMovie is part of Apple's iLife suite and lets you view and work with, edit and share your movies. The latest version of iMovie has made a marked improvement in working with large projects, reliability and performance. Your movies, clips and photos are automatically organized in the built-in library so they're just a click away. iMovie has an innovative interface that makes it quick and easy to look through the library and to create new movies. With a few simple steps, you can import movies to your site, put them up on YouTube and even create clips for your phone, iPhone, iPod or Apple TV.

iMovie supports both standard and high definition videos in a number of video formats including MPEG-2, MPEG-4, Quick Time Movie, AVCHD, DV and HDV(High Definition Video), Mac Video Converter is the best MTS to iMovie Converter that can convert mts to imovie mp4 format, then you can import mts to imovie.

How to import MTS movie to imovie with MTS to iMovie Converter?

• Step 1: Add mts files
  Free download, install and run Mac Video Converter, then click "Add File" button to select your desired format that need to be converted from the "file type" list in the pop-up window.
  
  
• Step 2: Choose output format: "MPEG-4 Movie (*.mp4)"
  Seletc the right profile that can be supported by iMovie, such as .mp4,etc.
  
  
• Step 3: Convert
  When you get ready to convert the added mts videos on Mac, Click the "Convert" button to start conversion.
  
  
• Step 4: Importing convertion video files to imovie
  Launch iMovie, go to "file > import movies". Select the converted MP4 video then click "import".