Anne Hathaway is terrified about taking on the role of iconic singer Judy Garland - branding herself "insane" for agreeing to play the late star in a biopic.

The Bride Wars actress will play the Wizard of Oz legend in a big screen adaptation of biographer Gerald Clarke's 2001 book "Get Happy: The Life of Judy Garland."

And despite showing off her song-and-dance skills during a musical medley with Hugh Jackman at the Oscars in February, Hathaway still isn't sure she has the talents to do the part justice.

She tells the New York Daily News, "I think I'm either naive or insane to play her - maybe a little bit of both!"

But at least Hathaway has the backing of another musical veteran - Garland's daughter Liza Minnelli.

She adds, "I haven't had a chance to talk to her about it yet, but I understand that as long as I treat Judy with respect - which of course I will - Liza is very happy about it."

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(This news article provided by World Entertainment News Network)