Nicole Kidman 's marriage collapse was obvious after her now-estranged husband, Keith Urban, raged during a radio chat over questions about his wife's on-screen intimacy – with sources now telling RadarOnline.com her latest film role was the breaking point in their 19-year union.

The 58-year-old Big Little Lies star and the 57-year-old Grammy-winning musician are separating after months of speculation. Article continues below advertisement

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The pair, who married in Sydney in 2006 , share two daughters – Sunday, 17, and Faith, 14 – and had recently spent long stretches apart as Kidman pursued filming commitments while

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