The Big Little Lies star is notoriously tight lipped about her private life, but broke with her usual protocol by opening up about Bella in a recent interview with Vanity Fair.
'Bella lives just outside London. You know, she really feels more English.
'We lived there for Eyes Wide Shut, Mission Impossible and The Portrait of a Lady.
'They [Isabella and Conor] both had English accents when they were little.'
Rumours of a rift between mother and daughter took hold in 2015 when Nicole was noticeably absent from Bella's London wedding to IT consultant Max Parker.
Tom and Conor did not attend either, with sources saying Bella wanted to avoid media attention on her big day.
New Idea recently reported that Bella is now being groomed for Scientology superstardom.
Nicole opened up about her eldest children's divisive beliefs last October, insisting it is her job to give them unconditional love regardless.
'They are able to make their own decisions. They have made choices to be Scientologists and as a mother, it’s my job to love them,' she said.
Nicole has not responded to the Enquirer's report.