Microsoft Office 2010 has some new video editing tools available that allow you to add fades, automatically go full screen, and make trims and cuts directly in PowerPoint. This lets you avoid the step of having to first edit your video in an outside editor, such as Movie Maker or Adobe Premiere.
To begin, you insert the video the same as you always have: go to the
Insert tab, choose
Video, then
Video from File.
Select your video. You now will have a "contextual"
Video Tools tab appear above the other tabs (see image below), and below it two other tabs,
Format and
Playback. Choose
Playback.


To trim video, choose the Trim Video icon. A dialogue box will appear (see image at left). Drag the left marker to set your Start point, and drag the right marker to choose your End point.
To add fades to the beginning and end of your video, use the Fade In and Fade Out boxes just to the right of the Trim Video icon to set the duration of the fades (see image below).
Finally, to allow your video to automatically play Full Screen, check the
Play Full Screen checkbox.