Julia Roberts was born on October 28, 1967 [Wikipedia]. If we're interested in her age in 2001 specifically, we can figure that out:

- Year of birth: 1967
- Target year: 2001

Subtracting the year of birth from the target year gives us her age in 2001:

2001 - 1967 = 34 years old

Therefore, Julia Roberts was 34 years old in 2001.