YouTube is a video sharing website on which users can upload and share videos. But iMovie don't support youtube video files format *.flv. So we need convert youtube video files to imovie support video files format.
YouTube to iMovie Converter not only can import youtube video files *.flv into imovie, but also can import all popular video files avi, mod, tod, mpg, wmv, vob, 3gp, 3g2, mkv, mts, m2ts, tp, ts, dv, dat,hd video, etc. into imovie.
[http://www.4yousoft.com/imovie/youtube-to-imovie.htm]import YouTube into iMovie is the most powerful Mac Video Converter for you to importing video to imovie on Mac OS X (Leopard supported).
How to import YouTube video files into iMovie?
Step 1: Free Download, install and run YouTube to iMovie Converter
It's simple and quickly.
Step 2: Load your favorite YouTube video files
Click "Add Files" button to add video files for converting.
Step 3: Output SettingsChoose a format like MP4 which is compatible with iMovie from the profile drop-down menu.
Step 4: Start convert YouTube into iMovie
Click"Start" button, it begins to convert your YouTube files to iMovie MP4 format.
Step 5: Import convertion YouTube files to imovie
First start iMovie, then choose File>Import, then, choose the converted videos you want to import from your project library, finally click Open to import.