The lives of three people are irrevocably changed in the aftermath of a horrific car accident in 21 Grams, an American film by Mexican director Alejandro González Iñárritu. Told in a non-linear format, the plot weaves in and out of the lives of Paul (Sean Penn), a mathematics professor in desperate need of a heart transplant due to a terminal heart condition; Jack (Benecio Del Torro), a former convict using his born-again Christian religion as a way to cling to sobriety and stay out of jail; and Christina (Naomi Watts), a recovering drug addict who finds her new, stable life as a wife and mother coming apart following a personal tragedy.
Paul, Jack and Christina are each shown in non-chronological scenes interwoven from past, present and future points in their storylines. This format slowly reveals how their lives are interconnected with each other, and it ultimately merges into a cohesive plot as the film concludes.
So far, so good: Naomi Watts certainly looks the part of the late Princess Diana of Wales that she's playing in the upcoming "Caught In Flight." The biopic centers upon Diana's post-divorce relationship with heart surgeon Dr. Hasnat Khan. The role was originally to go to Jessica Chastain, who was forced out by scheduling conflicts.