Right after the new road movie “The End of the Tour” premiered at the Sundance Film Festival in January, a movie-industry friend texted me her thoughts. Starring Jason Segel and Jesse Eisenberg, “End of the Tour” chronicles a real-life journey taken by then-Rolling Stone journalist David Lipsky (Eisenberg) and the late postmodern novelist David Foster Wallace (Segel) just before Wallace’s career blew up in 1996, and the movie electrified audiences with its ability to tuck meaningful truths into banal Middle American settings.

My friend, however, was not feeling the charge. “Journalist film,” she said tersely, and while I wished she was just paying a compliment to Walter Cronkite, I knew better. On one hand, I could see her point. “End of the Tour” is a seemingly insular exercise - a film concerned with words and the words of the people who like words.

Yet the essence of her critique - that, as the armchair critic might say, “not much happens” - is also what made the movie special and of interest to more than a coterie of early-adopter writers, if not everyone in the Wallace family.

Arriving in theaters Friday, “End of the Tour” tackles heady subjects like the American penchant for self-distraction, the tango between genius and depression, the role of groupthink in value systems and the powder keg of the mentor-protege relationship. All of these topics come with insight to burn, making the 106-minute movie a serious bang for a philosophical buck.

Equally important as what the film talks about is how it frames that discussion. Under director James Ponsoldt and screenwriter Donald Margulies (the Pulitzer Prize-winning playwright, basing his screenplay on transcripts of the Wallace-Lipsky trip), “End of the Tour” broaches its subjects with a minimum of biographical niceties or melodrama. Instead, by following Lipsky and Wallace over the course of the tour as they discuss their lives and life in general and observes their at-times prickly dealings, it relies on ideas, character shadings and charm - the verve of a road-trip movie with the depth of a college seminar.

“One of the pitfalls with a film like this is that you can just end up with two people saying smart things in turn,” Segel said. “Instead, it’s a conversation. And the best conversation I ever heard. Two guys are talking in a car, and it’s weighty and intense, but it’s also fun.”

The idea of unleashing a wild energy on sublime topics isn’t a new trick, of course. It’s one practiced - some would say perfected - by Wallace himself. In works like the essay collection “A Supposedly Fun Thing I’ll Never Do Again,” the Kenyon graduation speech “This Is Water” and of course the mega-novel “Infinite Jest,” he scalpeled into our cultural pathologies with keen observation and foot-noted glee.

In a neat formal achievement, then, the movie has managed to take the same sophisticated approach Wallace took in his writing and applied it to a movie about David Foster Wallace.

Which, it must be said, is very David Foster Wallace.

Complicated figure

On a sweltering day recently near the Yale University campus, Donald Margulies sat in a bookstore contemplating one of modern literature’s most complicated figures. Behind him were copies of Wallace’s “Infinite Jest” and the posthumously published award winner “The Pale King” - suggesting how much the author, who committed suicide at his home in Claremont, Calif., at age 46 in 2008 after years of battling depression, still loomed over contemporary intellectual life if not the bestseller list.

Margulies is an unlikely person to bring Wallace to the movie masses. Though much of his work (“Time Stands Still,” “Collected Stories”) centers on artists, the playwright, now 60, was somewhat beyond Wallace’s target audience when the author’s sharp cultural critiques hit the Gen-X solar plexus in the 1990s.

Yet when Margulies’ agent sent him Lipsky’s memoir, “Although of Course You End Up Becoming Yourself” - about Lipsky’s reportorial travels with Wallace in Illinois and Minnesota at the close of the “Infinite Jest” press circuit - Margulies was piqued. Here was a story of two men circling each other in a literary sumo match: Lipsky, a novelist in his own right, envious of his subject’s emerging success; Wallace, already bronzing under the glare of expectation, suspicious of his interrogator.

If the book was just about two writers contemplating their lives, Margulies might have had little interest in adapting it. But the story throbbed with psychological vigor.

“It’s all in the subtext,” Margulies said. “Lipsky’s agenda, the competitiveness, Wallace about to hit the stratosphere, the ticking clock of a young reporter going back to New York - it was all there.”

Margulies, who teaches English and theater studies at Yale, called Ponsoldt, a former student, and asked if he might want to direct his script. With earlier films “Smashed” and “The Spectacular Now,” Ponsoldt, 37, had taken heightened genres - the addiction drama, the teen love story - and filmed them with an unadorned realism. His seemed like the right cool hands.

Lipsky, for his part, is depicted with his own complexity; he is interviewing Wallace even as he clearly wants to be Wallace. (Since the trip, Lipsky has concentrated mostly on nonfiction, such as “Absolutely American,” a well-regarded book about life at West Point.)

Ponsoldt said he wanted to eschew the sweep of many famous-artist films, which devolve into biopic cliche. “There’s no God’s-eye point-of-view, nothing omniscient - just a subjective look at a brief window of time,” he said of the movie, which is seen through Lipsky’s eyes and set mainly over just five days.

That favoring of depth over breadth - and certainly this particular moment of depth - may be part of the reason Lipsky’s book has stirred upset among a few keepers of the Wallace flame. The author’s literary trust - primarily widow Karen Green - and publisher Little, Brown, led by longtime editor Michael Pietsch, disavowed the movie while it was in production.

In an email, Pietsch said he wouldn’t see the film and then explained his objections to it. “David would have howled the idea for it out of the room had it been suggested while he was living, and the fact that it can go ahead because he’s dead makes me very, very sad,” he wrote. “Anyone who has read David’s writing knows how tormented he felt about being a public figure and his overwhelming anxiety about being on the wrong side of the screen. The existence of a mythification of this brief passage of his life strikes me as an affront to him and to people who love his writing.”

Viewers will make up their own minds on that and on the specifics of the portrayal. While the film certainly stays far away from the idea of “St. Dave” - the ironic nickname some friends have used to describe what they see as an unhealthy deification of the author - and does offer moments of prickliness, Segel’s nuanced performance leaves an impression of sympathy and vulnerability. Wallace on the cusp of stardom is indeed worried about his privacy, which is shrinking, as well as the pressure, which is building.

“There are struggles in a situation like this that are very real,” Margulies said. “How do you move on when there are now expectations in a place where formerly there were none? How do you move on when peers are rating your work and comparing it to what you’ve done in the past?”