Seth Savoy, sharing writing duties with Kevin Bernhardt and Jason Miller, demonstrates considerable skill in “Echo Boomers,” bringing a lively energy to the film that feels appropriate for the story being told. It wouldn't be surprising to discover Savoy is deeply appreciative of filmmakers like Guy Ritchie and Quentin Tarantino, as well as movies such as "The Town" and "Heat." This is an enjoyable, compact entry wit…