It’s easy to add a sense of gravity and thematic weight to any title by adding “American” to it. Hustle becomes American Hustle. Gangster becomes American Gangster. Pie becomes American Pie. The tricky part is feeling like the addition of “American” has been earned, particularly when it modifies a word as powerful as “primeval.” The title of American Primeval, a new miniseries written by Mark L. Smith and directed by Peter Berg, sounds like an overstatement...