Aquaman - 5/10 - For me this feels like 2-3 films all mashed into the running time of one and suffered for it. I enjoyed watching Momoa and the world of Atlantis but the "Manta" sub-plot wasted time and did nothing (other than show Aquamans regret), the "heir to the throne" main-plot took time away from from "who is Aquaman" and that felt rushed with so much exposition to get into so little time.
The effects, while cool in places, just became too much during the final battle. I feel that this should just have been an origin story - How Aquaman became Aquaman - and the "heir to throne" and "Manta" sob-plots could have been left to later movies. The cast did OK, nothing really to stretch them in the script although I did like Nicole Kidman's role but trying to hang a whole movie on Momoa's "cool guy you'd want to hang out with" persona meant the film felt much weaker when he wasn't on screen.
However despite some negatives I did enjoy enough of the film to give it an enjoyable but overly hectic 5/10.