Here’s a great 25 minute documentary about the science of happiness, featuring Harvard’s Dr Daniel Gilbert (“Stumbling on Happiness”), Dr Angela Clow from the University of Westminster and my favourite, Newcastle University’s Dr Daniel Nettle (“Happiness – The Science behind your Smile”).
Thanks to CoachFu for the link

2 Day Introduction to the Science of Strengths, Happiness and Well-being: March 26/27 2010 Bristol
Bridget Grenville-Cleave and Dr Ilona Boniwell are authors of the best-selling book 'The Happiness Equation'...