Living on only a $1.50 a day seems impossible if you're used to living on much much more.  

Recently a group of celebrities made headlines when they participated in something called  Live Below the Line campaign. The initiative, sponsored by the Global Poverty Project organization, challenges people to live on $1.50 a day for a week.

But will participation by celebrities actually raise awareness about poverty? And how closely does their experience parallel those of people who are really impoverished?

We'll talk to actress Debi Mazar, best known for her roles in "Goodfellas" and HBO's "Entourage," who's participating in the initiative.