Pull down the “File” menu and choose “New Movie Recording”.Open QuickTime Player in Mac OS, it’s found in the /Applications folder.This end result will be a movie file being saved that can be shared, uploaded, edited, or used however you’d like. There are a few different ways to accomplish video capture on a Mac, but we’re going to focus on recording video with QuickTime Player and the Mac computers webcam, because the software is bundled on all Macs and virtually every Mac has a built in camera to record from.