Tarzan is among the most filmed characters in cinema history, yet few of the dozens of movies from the past 80 years have truly captured the spirit of Edgar Rice Burroughs’ most popular creation. “The Legend of Tarzan” (out Tuesday on Blu-ray, $36-$45) is no different. Big on CGI and gloss, it finds Lord Greystoke (Alexander Skarsgård) returning to his African home to fight injustice and rescue his now-wife, Jane (Margot Robbie). A handful of featurettes amount to standard fare.