When it was originally announced that James Wan was going to direct the first ever Aquaman movie, it actually made quite a bit of sense. The filmmaker not only had some tremendous success with the making and release of Furious 7 (his debut in the blockbuster realm), but also had established a great working relationship with Warner Bros. (specifically by launching The Conjuring Universe). That in mind, it may surprise you to learn that he apparently wasn’t the studio’s first choice for the gig, as Peter Jackson was originally pitched on the project… not once, but twice.
Article source: https://www.cinemablend.com/news/2471712/peter-jackson-turned-down-directing-aquaman-more-than-once