The real-life Bel, she says, would have worn "a tweed suit and brogues."
"You sort of think, could Bel really afford a silk two-piece on a BBC producer's salary?" Garai said. "And then everyone goes, 'Oh shut up, Romola.' So I say 'OK, OK, yes. I'll wear the beautiful suits. And breathe in.'"
Jill Lawless can be reached at http://Twitter.com/JillLawless
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