Naomi Watts lost her father to a heroin overdose when she was just seven years old.

Now, her mother Myfanway Edwards has spoken about the death of her husband and the effect the tragedy had on the Hollywood star.

Peter Watts, a Pink Floyd sound engineer, was found dead in a Notting Hill flat in 1976.

Related: Naomi Watts storms out of interview about Princess Diana.

At the time of his death, he and Ms Edwards had divorced but were in the process of reconciling

Naomi Watts at the 87th Annual Academy Awards. Image via Getty.

Ms Edwards told The Daily Mail the death had rocked Naomi and her brother Ben.

However, Ms Edwards said the tragedy had also helped Naomi with her film roles.

The death of her father has always affected Naomi.

Naomi and Ben lived in Wales with Ms Edwards after Mr Watts’ death, and the family moved to Australia when Naomi was 14.

Naomi has two children with partner Liev Schreiber, who Ms Edwards described as a “father figure” to Naomi. Hmm.