Rachel Weisz has explained the motivation behind her The Deep Blue Sea character.

The Brothers Bloom actress said that her love makes a fool of her character Hester Collyer in Terrence Davies’s movie.

“She makes a kind of fool out of herself,” Weisz told Metro.

“She’s so in love and so desperate to be with Freddie [co-star Tom Hiddleston] that she doesn’t really care that he gives her nothing and treats her badly: she’ll take anything. And I thought that was a really interesting emotional place to be in.

“I suppose you can say [love] is a kind of madness, isn’t it? That’s sort of what I guess the film is about; throwing away reservations and being completely, totally at the mercy of all your passions, throwing your manners and your breeding and your upbringing and your class, or whatever, out the window.”

The film sees Collyer throw away her marriage with kind but dull judge Sir William (Simon Russell Beale) over her infatuation with Hiddleston’s RAF pilot character.

Weisz married Daniel Craig in New York earlier this year. The pair began dating in November 2010 after Weisz split from long-time fiancé and Black Swan director Darren Aronofsky.