is there a movie based on him alone?
Yes, The film "Aquaman".
Arthur Curry (DC Extended Universe)
Originally appearing in "", the character has a prominent role in the film "Justice League" and is later the subject of his own film "Aquaman". The DCEU marks Aquaman's first portrayal in cinema, with his character having been re-imagined as compared 
whose at the end of justice league trailer Clark Kent was revealed in a final trailer before the release of the film. what is the storyline? Steppenwolf and his legions of Parademons had attempted to take over the Earth using the combined energies of the three Mother Boxes. who are the other characters? Batman, Wonder Woman, The Flash, Aquaman, and Cyborg, Superman, Steppenwolf , Parademons. what can you tell me about the fourth character? He is a fictional character in the DC Extended Universe based on the DC Comics superhero of the same name.
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Arthur Curry (DC Extended Universe) [SEP] Introduction
Arthur Curry, also known by his superhero moniker Aquaman, is a fictional character in the DC Extended Universe based on the DC Comics superhero of the same name. He is portrayed by American actor Jason Momoa. Originally appearing in "", the character has a prominent role in the film "Justice League" and is later the subject of his own film "Aquaman". The DCEU marks Aquaman's first portrayal in cinema, with his character having been re-imagined as compared to his comics counterpart.