I’ve seen this movie a total of 3 times and every time I marvel at Ms. Zellweger's performance . It is incredibly sad to watch how the movie studios controlled Ms. Garland from such a young age. Ms Garland was inevitably forced into working outside the US in order to make more money to take care of herself & her children. Judy Garland proved somewhat difficult to work with in her extended stay in London, late to stage, not wanting to go onstage..etc..
However, watching her onstage shows that this is a well deserved Oscar for Renee Zellweger anyway you look at it. Whether it be her own singing voice & her dancing in the stage numbers-to her witty banter back & forth with the audience, this is an Academy performance through & through.