Jason and the Argonauts.

At a young age, Jason witnesses the brutal deposement and murder of his father at the hands of his uncle Pelias. Twenty years later, Jason returns home to claim his rightful place as king, but Pelias orders him to be executed, and in order to save himself Jason is forced to go on a dangerous quest to find the legendary Golden Fleece. So Jason gathers a motley crew of men and sets sail on the Argos.