(Cover) - EN Showbiz - Charlize Theron dressed her baby son in a "tuxedo onesie" and the pair went out for dinner on Mother's Day.

The Oscar-winning star announced she had adopted a boy called Jackson in March. Charlize has embraced her parenting duties and was thrilled to celebrate her first Mother's Day in the US last weekend.

The beauty took her six-month-old son out for a meal to mark the special day.

"We had a nice little night, he wore a tuxedo, we went to dinner. Well like a little onesie tuxedo," she told E! Online. "Yes, it was a lovely evening."

Charlize, 36, is currently promoting her new movie Snow White and the Huntsman.

Her co-star Chris Hemsworth is also a new parent, after his wife Elsa Pataky gave birth to daughter India Rose recently.

Chris was quizzed on how he is adjusting to raising a baby and how he spent Mother's Day. The hunk admits that travelling around the world can be confusing at times.

"We changed some nappies and tried to get some sleep and that didn't really work and we hung out with the baby," Chris joked. "It's Mother's Day in America and we're here in the UK. She's from Spain, I'm from Australia. It's all very new."

Chris is reluctant to give away too many details about the new addition to his family.

However, he recently explained how the couple decided on a name for their firstborn.

"It was just a name we liked, I always kind of liked Indie or Indiana for a boy and she liked India. We sorta went, 'Oh well, whether it's a boy or girl that will decide.' It just seemed to fit," he smiled. (C) Cover Media