For anyone who really loves their physics, they will really enjoy this documentary.
It goes through a lot of stuff such as the discovery of the four fundamental forces and shows the viewer in laymens terms how quantum mechanics and relativity works and ultimately it tries to explain to the viewer why unifying quantum mechanics with relativity is needed. Which this documentary states that string theory will accomplish (but apparently there is more theories on unification - quantum loop gravity?).
Me being a first year physics student still has very little knowledge of physics, but I have found physics interesting to study. This documentary though has inspired me to really try and go deeper into the physics principles taught during second year physics. The documentary has shown me just how fun learning physics will be when I delve further into my physics studies.
Great documentary!
http://www.youtube.com/watch?v=ULlR_pkHjUQ#