Marion Curtis/Startraks
January 14, 2015 02:15 PM

Julianne Moore says she felt pretty relaxed at the Golden Globes before she picked up the award for best actress in a motion picture, drama for her role in Still Alice.

But even this veteran actress has her limits.

“It had been a long, long night. It was so hot in there and I was feeling pretty calm for most of the night,” Moore told PEOPLE at the New York City screening of the film at the Landmark Sunshine Cinema on Tuesday night. “My husband was there and we had a good night.”

“Then, after a while, you’re like, ‘Wow, this is going on for a long time,’ ” she continued. “Naturally, you get nervous. It was nice and super exciting. I can’t say that I was unfazed.”

No stranger to awards shows, Moore also says she plans to treat the Oscar nominations announcement on Thursday like any other day.

“I’m honestly trying to go one day at a time. We’ve been so busy with press and stuff and I’m going to be on a plane Thursday. I have to go back out to L.A. for the Critic’s Choice Awards so, who knows. We’ll see.”

In Moore’s acceptance speech Sunday night, she recalled that the author of Still Alice told her that no one wanted to turn the book into a movie because no one wanted to see a movie about a middle-aged woman.

But Moore proved the naysayers wrong – and in turn inspired costar Kate Bosworth.

“Listen, it is difficult to be a professional artist, it doesn’t really matter to me,” Bosworth told reporters on Tuesday in response to whether she’s worried about how middle-aged women are perceived in Hollywood. “It’s challenging to make a living off of being creative.”

She continued: “But I have people like Julie, and I look up to Cate Blanchett a lot. All you can do is keep doing the work and putting one foot in front of the other and hopefully there will be a long career.”

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