Oscar-winner Julia Roberts says in order to spend greater time with her family she only accepts one movie a year.

The 46-year-old actress has nine-year-old twins Hazel and Phinnaeus and six-year-old Henry with husband Daniel Moder, reported Contactmusic.

"I make one film per year and that's a good balance. My older kids have just turned nine and my son is six; they still need me. My family takes up a lot of my time and my creative energy, but I'm lucky to have worked enough already to allow myself to take time off," Roberts said.

"When I see my friends struggling to juggle both, I feel very privileged. I act less, but better; I've always been demanding (of a role), now I'm difficult," she added.