Research of Multi-Angle and Picture in Picture
Picture in Picture:
http://www.colbertnation.com/the-colbert-report-videos/340907/july-07-2010/the-economist-photoshops-obama-s-picture
http://www.youtube.com/watch?v=XP7ODUQ_Ttw (around 3:50)
http://www.youtube.com/watch?v=ojUUCZfTux4&feature=relmfu
http://www.youtube.com/watch?v=0wGRMJp4Wq0&feature=related
Multi-Angle