1999: Named as one of European films 'Shooting Stars' by European Film Promotion.
Auditioned for roles in The Matrix (1999), Shakespeare in Love (1998) and Moulin Rouge! (2001).
Trainspotting (1996) was released on Kelly's 20th birthday.
Was two months pregnant with her son Freddie when she completed filming on Choke (2008).
Returned to work six months after giving birth to her son Freddie in order to begin filming Skellig: The Owl Man (2009).
For her role on Boardwalk Empire (2010), she was named one of the "8 Actors Who Turn Television into Art", in the cover story of The New York Times Magazine (9/11/11).
Gave birth to her 1st child at age 32, a son Freddie Peter Payne on March 9, 2008. Child's father is her husband, Dougie Payne.
Gave birth to her 2nd child at age 36, a son Theodore William Payne on December 8, 2012. Child's father is her husband, Dougie Payne.
She was the last person to be cast in Harry Potter and the Deathly Hallows: Part 2 (2011). Subsequently she was the last person ever to join the large cast of the 'Harry Potter' story.
As of 2016 she has appeared in four films that were nominated for the Best Picture Oscar: Elizabeth (1998), Gosford Park (2001), Finding Neverland (2003), and No Country for Old Men (2007). Of those, No Country for Old Men (2007) won in the category.
Daughter of Archibald Macdonald and Patricia Kelly. They separated in 1985 when Kelly was 9-years-old but did not divorce until 1993.
While Kelly Macdonald played Disney princess Merida in Brave, her favourite animated Disney character is Tinkerbell from Peter Pan.
Of Clan Donald.