Anne Hathaway has admitted that she is worried that fans will not like her depiction of screen legend Judy Garland in new movie Get Happy.
The Oscar nominated actress is set to play Garland in a biopic about the actress and she admits that she is desperate to get it right.
Speaking to BBC Radio 4's Front Row: "I certainly don't sing like Judy Garland but the talk is to have me do the singing.
"But I think people might cry murder if they don't get to hear Judy's beloved voice so the talk is for me to sing but I don't know if that's exactly what will happen.
"It's a very sensitive project and there have been so many stories told about her life that we're really trying to get it right...
"We're taking our time with it. I know it seems like it's sort of an endless process but it's very, very slow incremental steps."
Hathaway is back on the big screen next week with Love and Other Drugs, which sees her reunite with Jake Gyllenhaal.
And it's been a busy year for the actress as she has already lent her voice to animation movie Rio and completed work on One Day - which also stars Jim Sturgess.
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