By Emma Gritt Aquaman and the Lost Kingdom has sunk like a stone with reviewers and fans. The new film, starring Jason Momoa, 44, as DC Comics character Arthur Curry, a half-human, half-Atlantean superhero who is king of the undersea nation of Atlantis, was released on Friday – and it seems it hasn’t made a splash with early viewers. In the US, it’s taken $40 million through over the past four days – a drop in the ocean compared to the $205 million it cost to make it. It’s a stark comparison to the first movie – released in 2018 – which opened to $67.8 million in the US and went on to make alm…