There is one sequence that is undeniably the saddest movie moment in cinematic history. If you've ever watched UP, then you inevitably got right in your feelings when watching the montage of Carl and Ellie Fredricksen's love story.
It follows the love story between the two with them meeting as children in Ellie's clubhouse, getting married years later and then turn the clubhouse into their new home.
They dream of having a children together but we see that after decorating a nursery, Ellie and Carl receive bad news about their baby (presumably a miscarriage) that leads Ellie to a period of grief.
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Rewatch the movie moment below:
Sorry, just tearing up again.
But in a Reddit post, someone has come up with a heartbreaking theory about UP.
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The poster said: "Carl and Ellie seem to have spent a decent amount of time in their club house. Ellie more so as the club house appears to be well established by the time Carl meets her. They later buy and remodel the club house making it their home.
"Carl is 78 when he begins his journey south according to the Disney Fandom Wiki and if the release date is "present day" for the journey Carl would have been born in the early 1930s.
"Prior to 1940 around 87% of homes used lead based paint
"Lead exposure can cause reproductive problems in human reproductive systems by messing with hormones.
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"By playing in a home built prior to 1940 that was clearly in disrepair and then remodeling that home themselves both Ellie and Carl were likely exposed to a significant amount of lead dust and paint particles containing lead."
Therefore, the poster claims that lead exposure led to Carl and Ellie not being able to have a baby.
And it's not completely out of the question.
Homes in the US were likely to have at least some lead-based paint before its residential use was banned in 1978.
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The CDC also says: "Lead can cross the placental barrier, which means pregnant women who are exposed to lead also expose their unborn child. Lead can damage a developing baby’s nervous system.
"Even low-level lead exposures in developing babies have been found to affect behavior and intelligence. Lead exposure can cause miscarriage, stillbirths, and infertility (in both men and women)."
So, there is definitely a link between lead exposure and miscarriages, but we won't jump to any conclusions right now.
Featured Image Credit: AlamyTopics: TV And Film