“Titanic” director and deep sea explorer James Cameron took part in a brainstorming session with scientists, academics and Washington officials on Tuesday on how to contain the six week-old oil spill in the Gulf of Mexico, environmental sources said. US agency officials said Tuesday's meeting was “part of the federal government's ongoing efforts to hear from stakeholders, scientists and experts from academia, government and the private sector as we continue to respond to the BP oil spill.” Cameron studied physics at college and helped develop deep sea submersible equipment and other technology for the making of documentaries exploring sea wrecks some two miles below the surface.