In the creator commentary special, Broly is confirmed to have been written as an autistic person. Which is why he is genuinely passive, but snarky and focuses on something he finds interesting (Power Levels). Also why he takes things at face value; such as the incorrect statement that Trunks is female.
It also makes his hated for Goku align with the diagnosis. As an infant he was subjected to HOURS of Goku crying; which would be utter torture for an infant with autism, as their hearing is much more sensitive. This traumatic memory is only triggered by hearing the name Kakarot (which Paragus likely told him when giving him therapy).
The Legendary Super Saiyan transformation is the result of Broly snapping after having his trauma triggered too much. He become focused on trying to give Goku great torment to repay him; with his anger and sadism growing worse as he can't sate his desire for revenge.
It also makes his hated for Goku align with the diagnosis. As an infant he was subjected to HOURS of Goku crying; which would be utter torture for an infant with autism, as their hearing is much more sensitive. This traumatic memory is only triggered by hearing the name Kakarot (which Paragus likely told him when giving him therapy).
The Legendary Super Saiyan transformation is the result of Broly snapping after having his trauma triggered too much. He become focused on trying to give Goku great torment to repay him; with his anger and sadism growing worse as he can't sate his desire for revenge.
The movie happens during the week before the Cell Games.
Vegeta makes valid points that he has no subjects nor infrastructure to rule his new Kingdom.
The fact the royal family and planet are all named Vegeta is made fun of. With the throwaway gag being only "a goddamn idiot" would do this; due to how confusing it is.
A deleted scene would have seen Goku pester Pialf, whom has to take anxiety medication due to the trauma Goku causes him.