I can't find any videos of lectures that Grigori Perelman gave for his proof of Poincare's conjecture. For example, the following is a picture of one of his lecture in US.
Edit. I was studying his papers so I thought maybe I can learn much more through his lectures. A lot of lectures have been asked in MSE, I hope I won't get closing vote. I aim to learn by this very question. Thanks in advance.