Slimmed-down Zach Galifianakis hits ‘Birdman’ screening in New York

Zach Galifianakis was serious about losing weight.

The once rotund “Hangover Part III� star showed off his trimmer figure at the closing-night gala presentation of his comedy “Birdman (or The Unexpected Virtue of Ignorance)� at the 52nd New York Film Festival on Saturday.

“I’m dying,� the hirsute funnyman quipped about his slim-down to E! News, claiming that his blazer size was a “ladies’ 50.�

It’s been a while since the actor has hit the red carpet, something he chalks up to being bad at being a famous.

“Being a celebrity is ... it’s dumb, and I’m not interested in it,� he told Us Weekly. “I like to be an actor, and that’s it. The blurred lines are, I think, man-made. I think celebrity is a man-made thing; it’s not innate in us. ... I’d rather just do my work and go home and watch Lifetime.�

In May 2013, the “Between Two Ferns� host told Conan O’Brien that he started to shed the pounds when he cut back on hitting the bottle — and after a spittle-filled incident with two men riding in a Jaguar.

“I stopped drinking and I just kind of put the weight off ... I was having a lot of vodka with sausage ... delicious but bad for you,� he said. “I was getting into too much trouble with the drinking, so I just kind of stopped.�

Ladies’ size ... follow me on Twitter @NardineSaad.