She has since built a reputation as an international star in films such as Manuel Gomez Pereira's Boca a Boca (1996), Bigas Luna's The Chambermaid on the Titanic (1997), Jaime Chavarri's Sus Ojos Se Cerraron (1998), Gabriele Salvatores' adaptation of the Niccolò Ammaniti novel I'm Not Scared (2003) and Brad Anderson's The Machinist (2004).
During the years that it took for The Machinist to be produced, the script attracted the attention of producer-director Michael Bay, who hired Kosar to write the The Texas Chain Saw Massacre remake.
Later, while working in an airline's reservation office Kelly worked as a "white collar member" of the machinist's union.
Born in Dorchester, New Hampshire; attended the common schools and Wentworth Academy; learned the machinist's trade; moved to New Jersey in 1866 and settled in Long Branch, New Jersey; builder of railroad equipment; president of the Long Branch City Bank.