Helen Slater was just 18 when she scored her acting debut for the original 'Supergirl' before reprising the role as a de-aged version for 2023's 'The Flash': "They could have just put a Barbie doll in," she quips of her return.

While filming in the United Kingdom more than 40 years ago, she said Dunaway, now 85, and O'Toole, who died in 2013 at 81, made her feel at ease.

Helen Slater was just 18 when she scored her acting debut for the original 'Supergirl' before reprising the role as a de-aged version for 2023's 'The Flash': "They could have just…