The brothers kept in virtual isolation for 14 years

Mukunda and Narayana Angulo were two of seven children kept in virtual isolation in their New York apartment for 14 years by their father.

"For us there was the outside world and then there was the world in our apartment," said Narayana Angulo.

"We never went out in the winter. Or fall. Or spring."

The children learned about the world from his film collection.

A documentary - The Wolfpack - tells their extraordinary story and goes on show in select UK cinemas on Friday.