According to The Hollywood Reporter, the script centers on a Manhattan attorney (Goodwin), the consummate good girl, who falls in love with her best friend's fiance on her 30th birthday.
The project is based on a series of novels by Emily Giffin. Alcon also picked up rights to the second book, "Something Blue," with a plan to develop a sequel.
Krasinski's deal is rare in that it is a two-picture deal for a role -- he will play Goodwin's friend and confidant -- more supporting in nature in the first movie but which evolves into the male lead in the second one.
Luke Greenfield is directing the first pic, now eyeing a spring start.