Elon Musk's first wife, Justine Musk, has alleged that he told her 'I am the alpha in this relationship' during their wedding dance, in Alex Gibney's new documentary Musk, which premiered at the Venice Film Festival on 8 September.
Justine, who was married to Musk from 2000 to 2008, also says she learned the term 'gaslighting' through their relationship and describes feeling insignificant and frequently criticised.