(I'm Rob Reiner.)  In this romantic comedy that I directed, it was my mother Estelle who uttered the famous line, "I'll have what she's having"
[DOC] [TLE] 15 Fun Facts About 'When Harry Met Sally' | Mental Floss [PAR] Dec 8, 2015 ... Nora Ephron's most beloved romantic comedy opened in theaters ... Harry and 
Sally were modeled after director Rob Reiner and ... Estelle Reiner, the director's 
mother, had one lineand it was ... She's the older woman who says, "I'll have 
what she's having" at Katz's ... Katz's is proud of its famous scene.