Emma Watson and Russell Crowe attend Noah premiere

Russell Crowe and Emma Watson made a splash in London as they braved a sea of fans at the premiere of Noah.

Watson, who was wearing a stunning white Ralph Lauren gown, confessed she felt a duty to all women acting out childbirth for the first time in the film.

The stars walked a stormy carpet in Leicester Square, but for once the water was just for fun as the carpet was printed to look like waves.

Fans flooded to see the cast of the film, who also included Jennifer Connelly, Ray Winstone, Logan Lerman, Douglas Booth and director Darren Aronofsky.

Crowe's friend and Les Miserables co-star Hugh Jackman also made an appearance, to the delight of the crowds.

Watson, who plays Noah's adopted daughter Elah in the film, admitted her character's childbirth scenes were "really nerve-wracking".

The Harry Potter star said: "You feel a responsibility to women in general to portray it in a way that was true the experience and how tough it is.

"From what I've researched, it feels like a really life or death moment and I really wanted to make sure that that came across."

In an interview with London Live, she said: "[Making the film] was a really intense process for me. It was pretty gruelling but I think it made me a better actress."

Oscar-winning filmmaker Aronofsky co-wrote the reinterpretation of the classic biblical tale, which sees Noah build an ark to save all the animals from a flood sent by God to destroy mankind after they have turned the world into chaos.

The controversial film has attracted mixed reactions from religious audiences but has already topped the US box office in its opening weekend.

Crowe said: "It has something for people of faith and people who don't have faith. It's an intense experience.