Wait, some of this isn't true...
Saying you only spent 16.24% on admin isn't really fair. Here's the real breakdown from page 6 of your own financials...
Of the $8.9 million you spent in 2011:
$1.7 million in US employee salaries
$357,000 in Film costs
$850,000 in Production costs
$244,000 in "professional services" (DC lobbyists)
$1.07 million in travel expenses
$400,000 in office rent in San Diego
$16,000 in Entertainment
etc...
Only $2.8 million (31%) made it to your charity program (which is presumably further whittled down by local Ugandan officials and local management overhead) - what do the children actually get in goods & services?
Also, your rating on Charity Navigator isn't because you don't have an independent board (which is indeed a problem) - you lost 7 points because you haven't had your financial book independently audited. ...which is not a surprising given the use of cash noted above.
There are also some general criticisms of your organization of putting a little too much spin on the facts...
http://en.wikipedia.org/wiki/Invisible_Children_Inc#Criticisms
http://ilto.wordpress.com/2006/11/02/the-visible-problem-with-invisible-children/
http://www.blackstarnews.com/news/122/ARTICLE/6586/2010-06-02.html