14/08/2014 12:46 BST | Updated 20/05/2015 06:12 BST

Scarlett Johansson To Marry Romain Dauriac In Four Weeks

Pregnant actress Scarlett Johansson is set to marry her French journalist boyfriend Romain Dauriac in just four weeks time, reports say.

'Under The Skin' Premiere - The 70th Venice International Film Festival

The 29-year-old who announced her engagement in September last year and that she was expecting her first child in March is thought to walk down the aisle next month.

Rumour has it the star revealed all at a dinner thrown by Martha Stewart at her East Hampton estate on Saturday.

The wedding venue is being kept secret, but it is expected the Captain America star will either marry in her fiance's native Paris, or in the Hamptons, where they have been spending most of the summer.

Scarlet - who split from ex husband Ryan Reynolds in 2011 - previously said she would probably "wing it" on her wedding day.

Story continues below

Scarlett Johansson Is Getting Married Next Month

"I don't plan anything. I'm terrible at planning. Yeah, I'm not gonna plan anything - I like to wing it!"

Talking about her previous marriage and her new relationship she also confessed she finds it easier dating someone out of the limelight.

"It is [easier to be with someone who isn't famous], but it's more than that we do different things," she said.

"He's [Romain] in the whole art-scene world. So it's nice, because we can enjoy each other's worlds, but we don't have our crazy conflicting schedules and all that other stuff to contend with."

LOVE SCARLET? See more from her in the gallery below.