Anne Hathaway has revealed that when she read the script and saw she had the most of the scientific dialogue, she was clueless how she was going to learn that.
The 'Princess Diaries' star also said that she even wondered how they were going to make it entertaining for the audience, the Mirror reported.
She said that because if people are told that the biggest thrill ride of the year is going to be centered on astrophysics, she doesn't think that anybody would believe it for a second.
She said that she knew that part of her job would be to find a way to get all the science out there in a way that people can understand it, and in a way that was enjoyable and entertaining and thrilling; and for her, that's always emotion.
'Interstellar', which is directed by Christopher Nolan, stars Matthew McConaughey, Jessica Chastain and Michael Caine.