Anne Hathaway's is concerned Judy Garland fans will scream "murder" when she sings in a forthcoming biopic.
The Oscar-nominated beauty has been in talks to star as the screen legend - best known for her portrayal of Dorothy in 1939 movie 'The Wizard Of Oz' - since early 2009, and believes the "sensitive" nature of her life is what has caused Delays, but confirms the current plan is for her to sing.
She said: "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."
The 28-year-old star added the team behind the movie - which is based on Gerald Clarke's book 'Get Happy: The Life of Judy Garland' - are "motivated" but the process has been "endless".
She told BBC Radio 4's Front Row programme: "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.
"I had a meeting about it a couple of weeks ago and we're all very motivated."
Anne was recently nominated for a Best Actress prize at the Golden Globe Awards for her role as young Parkinson's Disease sufferer Maggie Murdock in 'Love & Other Drugs'.