Rose had signed a lengthy contract extension in 2015 with the network.

PBS quickly followed suit, stating: 'In light of yesterday’s revelations, PBS has terminated its relationship with Charlie Rose and cancelled distribution of his programs.'The network, which has aired Rose's show since 1991, also noted: 'PBS expects all the producers we work with to provide a workplace where people feel safe and are treated with dignity and respect.' A cameraman caught Rose returning to his apartment Monday night, after he had been suspended.

How will the story stack up against the greatest films about business?

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"In some instances it was clear that the children depicted were aware and intended that the content they were creating should appear on public internet sites," said the report.

But an IWF spokesman said in some cases the material was secretly recorded on internet video calling services and then posted by a third party.

"But they should be aware they are also likely to have no control over the final destination of such images.

"They could be shared countless times and remain in existence for many years to come, with consequences they will live to deeply regret.” The Big Short, the film adaptation of Michael Lewis' book of the same name about the causes of the financial crisis, opens in UK cinemas this weekend.

One video described in the report featured a girl aged about seven who was heavily made up and dressed in underwear exposing herself.

The girl says: "Mum might see it and get worried and you know, like, delete my account." Another video of "extremely sexually explicit" acts featured a girl aged about 12."To protect them there must be more investment in crime enforcement agencies so they have the manpower and latest technology to prevent this hideous abuse.“Some older children may be willingly taking part in making sexually explicit videos because it might seem edgy or exciting.Online safety group the Internet Watch Foundation (IWF) and Microsoft, the technology giant, which worked together on the new research, said they identified nearly 4,000 images and videos in a snapshot covering three months last autumn.And an overwhelming majority of the content – 93 per cent – featured girls rather than boys.Some children and young people appear to actively engage with the individual or individuals at the other end of the webcam.