Josh Hartnett regrets dating his co-stars, including Scarlett Johansson

The actor is well-known for going out with a string of Hollywood actresses.

Josh Hartnett has hinted he regrets dating Scarlett Johansson. The 35-year-old actor – who is currently in a relationship with British actress Tamsin Egerton – claims that romancing some of his former co-stars has had a negative impact on his career and made him “a lot of enemies” in Hollywood.