Here's an interesting piece via Forbes that puts into perspective the size and scope of the donation George Lucas is preparing to make to charity once the sale of Lucasfilm to Disney is completed.

Lucas joins an elite list of billion dollar givers and proves - not that most of us in the GFFA needed convincing - that it's not all about the money.

While Lucas may choose to donate the billions he made from selling Lucasfilm to a broader range of efforts, it is likely that a large portion will be distributed to this cause. And when Lucas does make that donation official, he will have placed himself into rarified company among philanthropists. Only a select few billionaires will have given away as much as he plans to. While his $4 billion won’t get him as far as Gates or Buffett, who have donated more than $45 billion combined, Lucas is following their example and should reach the next tier of biggest givers.

George Soros has given over $8 billion and Intel founder Gordon Moore has donated more than $6 billion. The wealthiest man in the world, Carlos Slim Helu, has reached $4 billion and counting. Lucas will also join other major philanthropists like Eli Broad, George Kaiser, and Michael Bloomberg among those giving back more than a billion dollars total to charitable efforts.