Cameron Diaz and husband Benji Madden enjoy a double date with her Sex Tape costar Rob Lowe and his wife Sheryl Berkoff

Arnold Schwarzenegger smokes cigar while being swarmed by fans outside NYC hotel... after dragging Rob Lowe for taking Maria Shriver's side in divorce

Arnold Schwarzenegger Playfully Calls Out Rob Lowe for Taking Maria Shriver's Side in Divorce (Exclusive)

Cameron Diaz, 51, and Nicole Richie, 42, pose for RARE photo with Sofia Richie, 25, as the two sisters-in-law support their Madden brother husbands at streamer launch