For me, it has to be “Old Boy” which is originally a Korean movie but the US version sucks so much that it remains incomparable. Another contender is “The Ring” again a Japanese movie (the ending differs between both versions, as the original one refers to the protagonist’s father sacrificing himself but the remake states that the cursed tape is being sent to someone else, passing the omen towards another stranger).
not a movie, but the american remake of ‘the good doctor’ is an almost complete inversion of the south korean original. Instead of a wholesome and inclusive community accepting the talented weirdo and humanising him as a character over the course of many humanising interactions, we get a talented actor going full regard as his character spergs out and shows through his work performance how superior he is to normals.
Also the original had a quite substantial subplot about their hospital beuarocracy dealing with a larger threat of privatisation. The issue is never fully resolved and the audience is left to linger with the uneasy sense that health outcomes are jeapardised by more than simple non-conformity. The american version celebrates the individual without addressing anything of substance
Fixed