Visible crew/equipment: When Sean Penn is outside the motel with the gun, he fires three shots past Benicio Del Toro's head into the ground behind. When Benicio falls to the ground you can see an ear plug in his left ear. (01:49:05)
21 grams (2003)
Directed by: Alejandro Gonzalez Inarritu, Alejandro G. Inarritu
Starring: Sean Penn, Naomi Watts, Benicio Del Toro, Danny Huston, Carly Nahon
Continuity mistake: When Paul is introduced at the hospital, in one shot he thinks, "What am I doing in this precorpse club?" and turns his head to his left. In the next shot, he is turned to the right, and the shot after shows him turning from his left to his right. (00:04:45)
Continuity mistake: At the beginning of the film, when Jack is playing Jenga with the teenager, Jack crosses his arms twice. (00:01:45)
Trivia: The experiment that showed that humans lose 21 grams at the moment of death were later shown to be highly flawed. The entire experiment was based on only four people. Only the first subject actually lost 21 grams. Another person lost a different weight, and the other two died before they could be properly weighed.
Paul Rivers: We have lived on a fraud a long time.
Paul Rivers: They say we all lose 21 grams... who will be next?
Marianne Jordan: Life has to go on Jack. With or without God.
Question: Would a doctor bring up Mary's past abortion? Even though Paul is her husband surely that's confidential?
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Answer: The title refers to an experiment in 1907 which attempted to show scientific proof of the existence of the soul by recording a loss of body weight (said to represent the departure of the soul) immediately following death. Referred to as the 21 grams experiment as one subject lost "three-fourths of an ounce" (21.3 grams), the experiment is regarded by the scientific community as flawed and unreliable, though it has been credited with popularizing the concept that the soul weighs 21 grams. (Wikipedia).