United Kingdom, Oct. 9 -- Jessica Chastain has revealed strangers treated her differently after she abandoned her trademark red hair for platinum blonde - with some apparently surprised to discover her personality has not changed with her appearance.

The Oscar-winning actress, 49, discussed her transformation during an appearance on Jimmy Kimmel Live, explaining how her new hairstyle has altered people's expectations of her behaviour.

Jessica, famed for her red locks, but who debuted her new look at the US Open in September, decided to dye her hair after wearing a blonde wig for her forthcoming Apple TV+ thriller The Off Weeks.

Her comments come ahead of the release of her new horror film The Other Mommy on Friday 9 October.

Speaking ...