Jennifer Aniston started to become her 'Cake' character.
The 45-year-old actress - who plays a woman with chronic pain in the drama film - has revealed how she adopted some of the characteristics of Claire Simmons herself.
She said: "There would be times when I would have to do a take over because I knew I moved too easily.
"But what's odd is that after about two weeks of walking and taking on a physical state, that starts to become sort of your natural state of being and moving."
The 'Friends' star also admitted that she felt empathetic towards the character and her struggles.
Speaking in Epix's 'Hollywood Sessions', as obtained by the Huffington Post, Jennifer said: "I felt a lot of empathy for her struggle, and I think she is beautiful.
"Her problems and her choices and her journey is beautiful. We feel empathy for people going through pain."
Meanwhile, Jennifer has revealed that she is "flattered" by the Oscar buzz that she is receiving for her role in 'Cake'.
Speaking about the role, she said recently: "It ticked all the boxes that an actor dreams of.
"It was just a wonderfully beautiful story of a woman in extraordinary pain, living through an unthinkable trauma.
"I also found her quite humorous and quite endearing."
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