Winslet said Saldaña was \"really generous in sharing with me the things that she had developed for her character,\" which helped make it so that it felt like Ronal \"had always sort of been there -- we just hadn't actually met her yet.\"

Regarding how she learned to hold her breath underwater for upwards of seven minutes, Winslet said, \"I couldn't believe what I was capable of.\"

\"It was really fascinating, actually, to learn something new at a time in my life when, you know, I didn't necessarily think I was going to get to do that kind of thing,\" she continued. \"So it was really cool.\"

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