Moving pictures may have been invented over a century ago, but video is now becoming a primary form of communication. The ability to include video clips in your PowerPoint presentation dramatically increases your palette of communication tools. One common type of video file uses the Motion Picture Experts Group encoding standard, fourth edition -- known as MPEG 4. These file types often have the MP4 file extension and with PowerPoint 2010 MP4 files will automatically be converted to play in the presentation as long as the free QuickTime player is installed on your computer.
Click on the "Insert" tab in PowerPoint.
Click on the "Movies" button on the right side of the ribbon.
Browse to the MP4 file you want to play in your PowerPoint presentation. Select the file and then click the "Insert" button. The video will be inserted on that slide and converted to play in PowerPoint.
Versions of PowerPoint prior to 2010 cannot play MP4 files. Convert them to the Windows Media Video format -- WMV -- using a video conversion tool like Freemake, HandBrake or Any Video Converter.
Adjust the playback of your video in PowerPoint by using the options in the "Movie Tools: Playback" tab.
Preview your movie in PowerPoint by clicking the movie on the slide and then clicking the play button under it.