Beautifully filmed with land scapes and oceans that are delight to watch, but limited by special effects particularly the battles between tribes which are over done.
The multiple story lines become confusing at times but the basic plot is the challenge between two tribes who have history behind them and are placed somewhere in history where they battle with spears but have the technology to invent and fly creative flying machines that are far into the future.
The hart of the script deals with the conflicts and battles along with personal relationships between royal families which climaxes in a battle between lovers who are political enemies. That reminds me of the 1948 film Duel In The Sun in which Gregory Peck and Jennifer Jones dual to the death because of family conflicts even when they are in love with each other. Here the spear battle does not destroy but resolves the conflicts far more effectively than Peck and Jones did in 1948.
Even with an excessive length and too many battles (the special effects dominate) there is something magical about the lives, locations and conflicts of the Black Panthers that charges up the audience and brings applause at the end particularly when Chadwick Boseman appears.