The "2021" in your query likely refers to a re-upload date on various media-sharing blogs rather than a new movie release. If you are looking to watch it legally, it is currently available through several official channels: Watch The Last Mimzy - Netflix
O coelho Mimzy pode não ter a chave literal do universo, mas ela certamente tem a chave para a nostalgia de um Brasil digital que já foi mais livre, mais bagunçado e, de certa forma, mais divertido. mimzy a chave do universo dual audioavi 2021
Mimzy - A Chave do Universo " (known as The Last Mimzy in English) is a science fiction family film originally released in 2007, directed by Robert Shaye The "2021" in your query likely refers to