The Harry Potter star, who won a top prize at the London Critics' Circle Film Awards on Sunday, admits juggling her roles as an actress and mother is hard work.
The busy stars have both decided to bow out of the spotlight for a while to focus on their young children, son Billy, nine, and five-year-old daughter Nell.
Bonham Carter tells The Daily Express: "It's hard. I'm dropping all the balls at the same time. You always think you're dong everything badly. Tim is taking some out and we are trying to be parents now, which is far harder than anything else. "