Hollywood, it seems, has a problem with the idea of parental equality.

In recent years, Jeremy Renner, Jason Patric, Guy Ritchie, Mel Gibson and Alec Baldwin have all found themselves embroiled in toxic access disputes. Some of these men have been attacked in the media by their ex-partners, and now receive only limited access to their children.

The topic is back in the public eye at the moment thanks to two widely read stories. First and perhaps most prominent, there's the ongoing divorce dispute between Brad Pitt and Angelina Jolie. Mr Pitt's fitness to be a father has been subjected to a slew of lurid claims, many apparently emanating from Ms Jolie's camp and aired in the media: we've been told he smokes too much marijuana, drinks too much alcohol, and has anger management problems. The three-time Oscar nominee currently has limited, supervised access to his children. It is believed he is fighting for joint custody.