Record Directly to Mac’s iMovie ‘11 from iSight, FaceTime, or Other Camera
You can record video directly into iMovie ’11 from a Mac’s iSight or FaceTime cameras, be it the stand-alone versions or the kind built in to most current Macs. To record directly from a built-in camera, click the Import button and then click the Capture button on the import window inside iMovie that appears. Otherwise connect your web camera, camcorder, or iSight (if not built-in) and click the Capture button.
If more than one camera is connected, select the one you’re calling into action from the Camera pop-up menu. Click Capture to start recording your movie, and then figure out where to save the footage and how to organize it in Event Library.
This may be the time to say thanks that you splurged for an extra-roomy (or additional) hard drive for your Mac. Video consumes about 13 gigabytes for every hour of footage in standard-definition gigabytes − ouch! − and up to 40GB, depending on the format, in high definition.
After you finish your movie and put it on a DVD to share with family and friends, discard the unneeded footage so that you'll have plenty of space for the sequel or archive it to an external backup drive or a flash drive in case you need it again in the future.