Joaquin Phoenix brought a fierce intensity to Freddie in “The Master”

Phoenix was applauded for his ferocious performance as a volatile ex-naval officer

Jurors at the “Venice Film Festival” selected both Philip Seymour Hoffman, and Joaquin Phoenix to share the best-actor trophy. One played the Scientology-style cult leader and the other his devotee in “The Master.” Paul Thomas Anderson clinched the directing prize for the movie.

The 37-year-old actor has been receiving rapturous plaudits for his ferocious performance as a volatile ex-naval officer in “The Master.” Though the actor was a no-show during the films press conference, the five-time Academy Award-nominated writer-director found time to lavish praise on Phoenix — and he’s certainly not alone.

Phoenix portrays Freddie Quell, a chronically unhinged alcoholic who returns home from the Second World War with neither direction nor purpose until he meets Lancaster Dodd (Philip Seymour Hoffman), the magnetic but slippery founder of a new religion.

The actors share many intimate scenes together as Dodd attempts to reform his willing but damaged disciple — and they learned Saturday that they’re also sharing the Venice Film Festival’s prize for top actor (Anderson took directing honors).

Anderson said he’d targeted collaboration with Phoenix for years, but he had to wait until the 37-year-old actor had finished making his bizarre 2010 pseudo-documentary/performance-art project “I’m Still Here.”

Well, Anderson said it was worth the wait. Phoenix brought a fierce intensity to Freddie, as if the lustful war vet was perpetually teetering on the brink of violence.

“I knew he was great,” Anderson said of Phoenix. “But this was something else.”

Three-time Oscar nominee Amy Adams portrayed Dodd’s formidable wife, an easy gig given that the 38-year-old “Enchanted” star had collaborated with Hoffman before.

“I adore, worship, love Philip, so to get to play someone who adores, worships, loves Philip was not a big stretch for me,” said the flame-haired actress with a smile.

Still, she admits she had nerves first stepping onto the set.

“I thought this experience was going to be this very serious Paul Thomas Anderson film with Joaquin Phoenix and Philip Seymour Hoffman,” she said.

“And it was actually a lot of fun. We laughed a lot. There was a lot of exploration. So just the freedom to experiment and to fail, it was unexpected.”

“Joaquin Phoenix is a life force in this film,” Hoffman told the Venice audience. “I kind of rode that life force, and that was my performance.”

“It was something that was untamable,” he said of his character’s effort to rein in Phoenix’s unstable Navy veteran.

At the press conference Saturday, however, certain topics were not up for exploration.

When asked how he felt about the Oscar buzz surrounding his film, Anderson merely smiled and replied: “Great.”

The other major discussion point surrounding the film is whether Hoffman’s character is inspired at all by Church of Scientology founder L. Ron Hubbard.

The similarities are numerous. Followers of Dodd’s doctrine are urged to rid themselves of past-life demons accumulated over trillions of years of existence through “processing,” similar to Scientology’s “auditing.” Like Hubbard, Dodd portrays himself as an author, a doctor, a nuclear physicist, a theoretical philosopher and a sea captain. And the film takes place in 1950, two years before Scientology was founded.

While Anderson has acknowledged that the origins of the religion served as inspiration before, he winced as if in physical pain when a reporter brought up the connection on Saturday before gently encouraging the inquisitor to drop the topic.

Anderson did, however, address a flap over the Venice festival awards. “The Master” was reportedly the first choice to win the festival’s top prize for best film, but because of a quirk in the rules restricting a movie from winning too many trophies, the award instead went to South Korean director Kim Ki-duk’s drama “Pieta.”

But Anderson, who said the positive response to his film thus far was “so satisfying,” shrugged off the apparent controversy.

“I’m thrilled with whatever they want to hand over,” Anderson said.

“I heard some of the scuttlebutt recently, but I’m just thrilled with whatever they’ve given us.”

The controversy was solved when jurors decided to award the best-film trophy, or Golden Lion, to Korean Kim Ki- Duk’s “Pieta,” about the encounter between a young loan shark and a woman claiming to be his mother. The director sang a song in Korean after picking up his prize.

Phoenix was also absent from the red-carpet closing-night ceremony on Venice’s Lido Island. Co-star Hoffman — who had just stepped off the plane, apologized for his hasty choice of suit — collected the movie’s awards.