I have a movie video in "Gallery" but when I "Create" this video to "Movie Maker" it shows the clip of the video on screen but when I play to make sure it looks okay, it speeds up and does not show the whole video.  It's a 6.37 minute video and it shows this whole video in 3 seconds.  I tried the slow speed but it just shows a small clip in slow speed and still does not show the whole video.  What can i do?