She is quite talented, to be sure, but it is clear that she is not an actress.
And yes, she is determined, and focused, and what not, but seeing Dreamgirls - with all the hard work, and thought she put into making the film - she is not a good actress.
I completely appreciate her, and wish her the best, but acting is not her medium. She is an INCREDIBLE performer, but something goes completely dead when she's not singing.
Personally, I think I have too much bloom.