Carey Mulligan as Alice Longbottom

I thought of the case of Bertha Jorkins wherein Barty Sr. perform a very powerful memory charm which resulted to forgetfulness. Could it be Neville's forgetfulness cause by a powerful memory charm too? I thought of this because both Frank and Alice are celebrated aurors aside from that Augusta Longbottom is a powerful witch more like in the league of Minerva McGonagall. Then Neville became an extreme forgetful boy not exactly in the league of longbottoms. What do you think?

Hija de Neville Longbottom y Hannah Abott