Angelina Jolie looked simply radiant in the Mexican sun as she officially kicked off Salt press events in Cancun yesterday. She was joined by castmate Chiwetel Ejiofor and director Philip Noyce, but all eyes were on Angelina with her perfect hair and tight, strapless Versace number. Angelina touched down at the destination earlier in the day with her four oldest kids — ICYMI, check out our tons of exclusive photos of Maddox, Pax, Zahara, and "Montenegro style"-loving Shiloh arriving! So far it looks like Brad is holding down the fort in LA with the twins as he prepares to shoot the long-awaited Moneyball with an even more anticipated entirely clean-shaven face. Angelina also made sure to fulfill her humanitarian duties in between her more glamorous promotional tasks, like Vanity Fair cover shoots and all the red carpets ahead.