You know how everyone who went to Vassar is all, "one time, when Annie Hathaway and I were studying for our intro to lit theory final..." and you have to control yourself from punching them in the face? With that in mind we decided to ask our friends in high places to help us compile an insider's guide to celebrity nicknames, so you too can be "that guy" at a cocktail party (or Sundance premiere after-party?) going on about "how cute Katie Heigl looked in the trailer for One for the Money." You're welcome.
![anne-hathaway-2011-hair-styles-8.jpg]()
Anne Hathaway = Annie Hathaway
![Screen shot 2012-01-19 at 3.21.46 PM.png]()
Kirsten Dunst = Kiki Dunst
![Robert-De-Niro_5.jpg]()
Robert De Niro = Bobby De Niro
![Katherine_Heigl_InStyle_February_2012_Editorial_02.jpg]()
Katherine Heigl = Katie Heigl
![Screen shot 2012-01-19 at 4.33.41 PM.png]()
Joseph Gordon-Levitt = Joe Gordon-Levitt
![Michael+Cera2.jpg]()
Michael Cera = Mike Cera
![dave-franco-men-to-watch-2012.jpg]()
Dave Franco = Davey Franco
![julianne_moore_sarah_palin_hbo_pic_2011.jpg]()
Julianne Moore = Julie Moore
![Johnny-Knoxville-Venice-Family-Clinic-Silver-Circle-Gala-2011-johnny-knoxville-19777873-396-594.jpg]()
Johnny Knoxville = PJ [Ed. his real name]
![Screen shot 2012-01-19 at 4.54.28 PM.png]()
Anne Hathaway = Annie Hathaway
Kirsten Dunst = Kiki Dunst
Robert De Niro = Bobby De Niro
Katherine Heigl = Katie Heigl
Joseph Gordon-Levitt = Joe Gordon-Levitt
Michael Cera = Mike Cera
Dave Franco = Davey Franco
Julianne Moore = Julie Moore
Johnny Knoxville = PJ [Ed. his real name]
Sandra Bullock = Sandy Bullock
![jennifer_aniston_getty_images.jpg]()
Jennifer Aniston = Jen Aniston
![natalie-portman-makeup-2012-golden-globes.jpg]()
Natalie Portman = Nat Portman
![Julianna-Margulies-2011-SAG-Awards.jpg]()
Julianna Margulies = Jules Margulies
![seymourhoffman.jpg]()
Philip Seymour Hoffman = Phil Hoffman
![cn_image.size.ed-burns-qa.jpg]()
Ed Burns = Eddie Burns
Jennifer Aniston = Jen Aniston
Natalie Portman = Nat Portman
Julianna Margulies = Jules Margulies
Philip Seymour Hoffman = Phil Hoffman
Ed Burns = Eddie Burns