If you are really in to bee porn then you could not do better than get yourself a DVD of "More Than Honey"
More than Honey - official film website This trailer includes a superb, but very short, clip of mating:
The full film contains a lot more.
The film also happens to tell of:
- US commercial beekeepers' disregard of bee and human health - including the widespread use of chemical treatments which would be illegal in Europe
- China's use of pesticides so efficiently that they now have to pollinate trees by hand
- Heart wrenching section of an alpine beekeeper having to destroy all his combs once EFB (or is it AFB?) is diagnosed
More clips here: