update: forgot to add. the movie is too large to play in quicktime. it is too laggy to watch.
At what resolution is your movie ?
My guess is that you haven't compressed your output and exported in uncompressed QT format. You'll have to modify the output module options to compress your movie. I'd recommand using an H264 preset.
You should have a look at this help page: http://help.adobe.com/en_US/aftereffects/cs/using/WS3878526689cb91655866c1103a4f2dff7-79f5 a.html
and I dont know what I'm doing wrong.
You didn't read the help. Read that link Seb was so kind to pick out.
Thank you for the link I am sorry I did not check the help section before I posted.