The US Coast Guard has published a few videos showing the underwater efforts to stop the gushing oil.
Here is the oil and gas stream from the riser of the Deepwater Horizon well May 11, 2010. This video is from the larger of two existing leaks on the riser. This leak is located approximately 460 feet from the top of the blowout preventer and rests on the sea floor at a depth of about 5,000 feet:
Here is a video as they lower the 100-ton containment dome to the sea bed May 7, 2010 as part of an effort to contain the leak from the Deepwater Horizon well.