21 Grams is a 2003 American drama film directed by Alejandro González Iñárritu and written by Guillermo Arriaga. It stars Sean Penn, Naomi Watts, Danny Huston, and Benicio del Toro. Like Arriaga's and González Iñárritu's previous film, Amores perros , 21 Grams interweaves several plot lines, around the consequences of a tragic automobile accident. Penn plays a critically ill academic mathematician, Watts plays a grief-stricken mother, and del Toro plays a born-again Christian ex-convict whose faith is sorely tested in the aftermath of the accident. 21 Grams is... presented in a non-linear arrangement where the lives of the characters are depicted before and after the accident. The three main characters each have 'past', 'present', and 'future' story threads, which are shown as non-linear fragments that punctuate elements of the overall story, all imminently coming toward each other and coalescing as the story progresses. The title refers to a belief propagated by the 1907 research of physician Dr.
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| Release date: | September 5, 2003 |
| Directed by: | Alejandro González Iñárritu |
| Rated: |  |
| Runtime: | 124 Minutes |
| Producer: | Alejandro González Iñárritu, Robert Salerno |
| Editor: | Stephen Mirrione |
| Music by: | Gustavo Santaolalla |
| Cinematography: | Rodrigo Prieto |
| Screenplay by: | Guillermo Arriaga |
| Estimated budget: | $20,000,000 |
| Genre: | Thriller |