Ending shot- How did they do it?

The ending shot of the sequence shows Joe with his eyes whited out, fully possessed.

This clip is actually an animation that i did on Boinx "iStopmotion". I took frames from the video and edited them all on photoshop, whitening out the eyes. I then pieced them back together using iStopmotion and exported it as a ".dv" file (the filetype video tape is stored in) to put back into iMovie in place of the clip i took the frames from.