Director McG has found his leading lady for the upcoming action thriller Three Days to Kill.  Variety reports that Amber Heard (The Rum Diary) is set to star opposite Kevin Costner in the pic for Relativity Media.  The script was written by Luc Besson and Adi Hasak and centers on a dying Secret Service agent (Costner) who decides to retire in order to spend time with his estranged family.  Heard has been set in the lead female role of “a woman who offers him access to an experimental drug that could save his life in exchange for one last assignment, which Costner must complete while coping with the drug's hallucinatory side effects.”  One imagines McG will try to bring the very visual premise to life with some innovative camera work, so here's hoping for the best.

Heard most recently wrapped roles in Robert Rodriguez’s sequel Machete Kills and the corporate thriller Paranoia opposite Liam Hemsworth.