Actress Katherine Waterston loves entering the fantasy world created by J.K. Rowling through "Fantastic Beasts" franchise, and says the "Harry Potter" author manages to come up with new ways to challenge the artistes with every film. The actress will be returning as auror Tina Goldstein in the second instalment "Fantastic Beasts: The Crimes of Grindelwald", which will open in India on November 16.

"We never go on the same ground. J.K. Rowling is always pushing these characters and telling in news ways," Waterston said during a roundtable discussion here while promoting the Warner Bros Pictures project. "She is always challenging us in new ways. How are we going to differentiate the first film from this one? Well, she has differentiated it and we just have to follow her," she added.