List of interesting math videos / documentaries

This is an offshoot of the question on Fun math outreach/social activities. I have listed a few videos/documentaries I have seen. I would appreciate if people could add on to this list.

$1.$ Story of maths Part1 Part2 Part3 Part4

$2.$ Dangerous Knowledge Part1 Part2

$3.$ Fermat's Last Theorem

$4.$ The Importance of Mathematics

$5.$ To Infinity and Beyond

Möbius transformations revealed is pretty amazing. Also, anything by Vi Hart.

Chaos: A Mathematical Adventure* (2010) and Dimensions** (2008) by Jos Leys, Étienne Ghys, Aurélien Alvarez, et al. are excellent, CC BY-NC-ND 3.0-licensed (i.e., free) movies about math.

Chaos introduces determinism vs. indeterminism, the butterfly effect, and Lorenz attractors. Dimensions does a very good job introducing stereographic projection, fourth dimensional geometry, complex numbers, fibrations, and proofs.

Both films are dubbed and subtitled in various languages.

^{*downloadable from Archive.org, HD720p torrent, or HD1080 torrent
**on YouTube}

Documentary of Paul Erdos "N is a Number" is another good documentary. Also there is a documentary of Srinivasa Ramanujan called God, Zero and Infinity was released by TIFR in 2009.

• http://www.youtube.com/watch?v=plohsYdD9LY

Another documentary named Hard Problems was released by MAA which shows how US students performed in the IMO.