Emma Watson is a great actress. She has done Harry Potter series. Recently Emma Watson reveal that she became sick during shoot of movie ‘Noah’ because the director forbade the use of bottled water on set.
She also said that Director Darren Aronofsky wanted to foster a “pro-environment” mood throughout production to mirror the ideas of the movie.
Watson told Wonderland magazine “Because of the storm, we ended up shooting most of our scenes between 4am and 7am – and at that time I never function well. Because the film has a pro-environment message, Darren didn’t want anyone drinking from plastic water bottles on set either” .

“Everything we used had to be recycled or recyclable. Having no water bottles on set at five in the morning – when you’re exhausted and delirious – wasn’t ideal. was so tired one morning I picked up a mug from my trailer and drank some stagnant water that had been there for the duration – so three months. I was so ill,” she continued.
The Black Swan director then stunned the actress by telling her to “use” her condition in a scene. “I came in the next day and was like: ‘Darren, I don’t think I can do this, I’m really sick,’” she said. “He was like: ‘Use it for the scene.’ And I turned round to the bus and was like: ‘Is he joking? He is joking right?’ and there was deadly silence.”