Rose Byrne is "gifted at disassociating" herself from her work.

The 46-year-old star has been nominated for the Academy Award for Best Actress for her performance in If I Had Legs I'd Kick You, but Rose actually found it easy to leave her on-screen character behind at the end of the working day.

Rose - who plays a psychotherapist who has to care for her daughter in the movie - told The Hollywood Reporter: "I'm gifted at disassociating, so I could just very much separate myself and shut off my valve and my battery to recharge. … [The crew was] protective of me, and they would find me rooms here and there and all that stuff.

"But I never wanted to get too far away from what I had to do, because it was like lightning in a bottle. It's like trying to get these moments, and I never wanted to be too far from the feeling, so it was always that technical, emotional dance."

Rose starred alongside A$AP Rocky in If I Had Legs I'd Kick You, and she relished the experience of working with the rap star.

She shared: "He couldn't have been cooler. He was so cool, and he was so respectful. He loved running lines. We were line nerds, and when we would run lines, he had a lot of curiosity and questions. It was fun. It was funny. We did laugh a lot."

Meanwhile, Rose previously revealed that she feels "grateful" for her success.

The acclaimed actress explained to The Independent: "People want that instant hit, that instant gratification. I definitely don't fall into that category. I probably fall into the category of character actress, which is not [me] trying to humble-brag or anything, it's just a hard business to place yourself in.

"I definitely was not a confident 20-year-old or even a confident 28-year-old, you know? It's taken me a long time to feel more in my skin. It's dull of me to say, but I do always feel grateful to have consistently been a working actress.

"It's not easy. It's a tough business, and people tend to fall in traps or rely on other things to get [them] through it."