Aishwarya Rai , a regular at the Cannes Film Festival red carpet and LOreal brand ambassador, is going beyond her glitz and glamour tag. She is beginning to reinvent herself on the global scene as an activist for social and humanitarian causes.As a step in that direction, the Bollywood diva will, alongside Queen Noor of Jordan, address a press conference May 14 at Hotel Martinez here to announce the third edition of the International Tribunes Cinema Verite event that