Matt Damon has been an advocate for public schools, for more public spending on public schools, for more status for public school teachers, etc. His mother is a public school teacher and he attended public school growing up. The image shows Damon with his wife Luciana Bozán who was at the time pregnant with a girl who was later named Stella Zavela. He also adopted Luciana's three children from an earlier marriage. Matt and Luciana have three children together (that's six for the family).
Damon moved to Los Angeles in 2012. He recently enrolled all his kids in private school. Some people have accused Damon of hypocrisy.
Damon's argument against enrolling the family in public school was an odd one, it amounted to 'the public schools aren't progressive enough'.
Since I have no idea what 'progressive enough' means in that context and because Damon could have used the privacy argument in justifying private school and because Damon never actually advocated that rich people send their kids to public schools, I'll give Damon a pass on this.
Interestingly enough though, Damon is starring in a movie called Elysium, about a future in which rich people live in above ground luxury while the poor live in ground level slums.
A Huffington Post article on this is here.
An article in a Florida paper about this subject using the word 'hypocrite' is here
A wikipedia article on the movie Elysium is here.http://en.wikipedia.org/wiki/Elysium_%28film%29