[Heather Wahlquist, Cameron Diaz, Sofia Vassilieva, Abigali Breslin, Evan Ellison, Jason Patric. All photos by JIMI CELESTE for PMc] Cameron Diaz showed younger co-stars Abigail Breslin and Sofia Vassileva how the pros do a red-carpet last night at the New York premiere of My Sister's Keeper. This is Cameron's first "Mother" part (a role she takes on with aplomb, according to early reviews), but last night she definitely proved she's more of a MILF than a mom-jeans type. New York social fixtures Ramona Singer and Rachel Zoe also attended the tear-jerker, based off of Jodi Picoult's best-selling book. Hope everyone wore water-proof mascara...we hear this film is quite the tear jerker.

Abigail Breslin                              Cameron Diaz, Jason Patric

Heather Wahlquist, Cameron Diaz, Sofia Vassilieva, Abigali Breslin, Evan Ellison, Jason Patric

Gena Rowlands, Bob Farrell                   Carol Kane

Sofia Vassilieva                            Thomas Dekker

Rachel Zoe                                            Alan Horn

Jeremy Leven                                     Ramona Singer

Jodi Picoult                                      Rachel Roy