reports that Penn and Mexican actress Kate del Castillo, who reportedly helped set up the meeting, are under investigation. ET reached out to Penn's rep about the interview, but he has no comment at this time. Meanwhile, the actor showed up to his 5th Annual Sean Penn and Friends Help Haiti Home Gala, benefiting J/P Haitian Relief Organization, on Saturday night in Beverly Hills, California. His ex and good friend, Madonna
, and her children, David and Mercy, were among those in attendance.