inspired by this

• green dress worn by keira knightley in atonement
• yellow satin dress worn by kate hudson in how to lose a guy in 10 day
• little black givenchy dress worn by audrey hepburn in breakfast at tiffany's
• wedding dress worn by audrey hepburn in funny face
• wedding dress worn my jennifer lopez in monster in law
• yellow satin slip dresses worn by the bridesmaids in monster in law
• red dress worn by jessica rabbit in who framed roger rabbit
• cream dress worn by jennifer gray at the end of dirty dancing
• greenish brown burnout velvet dress by DKNY worn by gwyneth paltrow in great expectations
• pink dress worn by gwyneth paltrow during archery scene in emma
• red satin gown worn by nicole kidman in moulin rouge
• red dress with layered beaded black lace overlay worn by kate winslet in titanic
• yellow satin dress worn by kirsten dunst in marie antoinette
• antique pink ruffled & striped dress worn by kirsten dunst in marie antoinette
• garden walking (chintz) dress worn by kirsten dunst in marie antoinette
• green & white floral printed organza dress with green velveteen sash worn by scarlett o'hara in gone with the wind
• amethyst purple satin ballgown with matching full length gloves worn by katie holmes at the end of first daughter

honorable mention (not technically a dress):

• rhinestone bustier with bead skirt worn by nicole kidman in moulin rouge
• moulin rouge
• chicago

and from tv:

• pale mauve silk dress with diamond brooch worn by buffy to her sr. prom on buffy the vampire slayer
• silk chiffon tan, green & white floral bridesmaids dress worn by rachel & pheobe to monica's wedding on friends
• light brown gown worn by rory gilmore to the wedding of honour huntzberger on gilmore girls
• creamy chintz satin dress designed by austin scarlett on project runway season 1
• green & white stripe dress with zipper accents designed by jeffrey sebelia on project runway season 3 for his final collection
• dark salmon lace gown with silk back ribbon worn by eva longoria on the pilot of desperate housewives that she mowes the lawn in