Los Angeles: Actress Kristen Stewart has revealed that she doesn't learn scripts and relies on improvisation. The "Cafe Society" actress said she will "quickly" memorise her dialogue if she needs to, but she thinks it is "better" to improvise and she finds sticking to a script "gets in her way", reports femalefirst.co.uk. "I never know my f***in' lines. Even in Woody Allen movies, I don't know my lines," Stewart told entertainment site vulture.com. "I learn them quickly if it's necessary, but typically, I just think it's better if I find it or say something slightly different," she added. However, Stewart admitted it can sometimes be a problem when she doesn't know her lines. "To be honest, sometimes I f**k myself over. I'm like, 'Oh s**t, I don't know my lines'" she said.