THERE’S inevitably a salacious aspect to “Tiger,” an HBO documentary about the rise and fall of Tiger Woods, since what happened in Vegas — and elsewhere — definitely didn’t stay there. Overall, though, this engrossing two-part film captures the forces that shaped the golf legend, renewing appreciation for his staggering talent while waving a cautionary flag regarding how it was forged.

At its core, “Tiger” represents the oldest of tales: A child trained from an early age to be extraordinary in a chosen field, while sacrificing many of the usual trappings associated with childhood. Growing up that way can become a prescription for a kind of belated adolescence indulging in the perks of wealth and fame, and under the watchful eyes of an eager media if you trip up.

The key figure from that perspective becomes Woods’ father, Earl, who turned his golf-playing toddler into a media novelty — showing off his skills on talk shows — training him to be the shot-making machine who integrated the stuffy world of professional golf and simultaneously dominated it. In doing so, Tiger spurred interest in the sport, captivating the imagination of people who had never sat through a tournament before. Journalist Charles Pierce describes Earl as “the original evangelist” of the cult of Tiger, one who described his young son’s unifying mission and future in near-messianic terms. Woods became “a cultural phenomenon as well as a sports one,” Sports Illustrated’s Gary Smith says, before essentially getting devoured by “the maw of celebrity and fame.”

Directors Matthew Heineman and Matthew Hamachek work with a producing team that includes the prolific Alex Gibney and Jeff Benedict and Armen Keteyian, whose book serves as a source for the project. They rekindle appreciation for the jaw-dropping wonder of Woods’ golfing rise, before the eventual fall.

It’s no accident the first part concludes with the introduction of Rachel Uchitel, one of the women to whom the golf prodigy was linked in a slew of 2009 tabloid headlines.

The portrait that emerges, however, proves more sympathetic than damning, particularly in regard to Earl Woods’ molding of his son and the microscope under which Tiger was forced to live, underscored by clips of comics turning revelations about his infidelity into easy punchlines.

“Tiger” tells us something about the state of media as well, including the love of a good comeback story and Nike’s “Winning Takes Care of Everything” post-scandal ad campaign. (SD-Agencies)