(Set Interview) Rob on Bella's 'Powerful' Transformation - BD2 BTS Footage (ET Twilight Week)

etonline Bella crosses over to the realm of the undead "without a hitch," reveals her Breaking Dawn: Part 2 co-star Robert Pattinson.

In the final installment of the Twilight Saga series, fans will see the once-shy lady love of Rpatz's Edward transformed into a sleek, confidently fang-tastic goddess.
 "The only worry is…how she's going to behave as a vampire," explains Robert of the highly-anticipated scene. "We find out very rapidly that she's very much in control of herself…hopefully it's going to be a powerful moment."