Lawrence took a tumble on her way up the stairs to accept the 'Best Actress' honour, prompting Cooper and Jackman to jump up to help her.
The Silver Linings Playbook star, who has blamed the trip on her dress, later told Entertainment Tonight that she didn't realise the actors had come to help her.
"I just heard about that," she revealed. "Because I didn't know, because I was in my cloud of, 'I want to die'. I had no idea - that actually fixes the whole moment!"
Meanwhile, Jackman suggested that Lawrence didn't really need his assistance, saying: "I was feeling for her. I thought, 'She's caught in that thing and she's falling into the abyss!' But she was fine - she didn't need me."
Photo gallery - Oscars red carpet:
"You guys all knew and nobody told me?" she joked. "Of course I was shocked. I can't believe all of you guys were like, 'Oh, oh', and I've been walking around shaking like a Chihuahua this whole time."
When her interview was over, Lawrence turned round to meet her family, who jumped on her with hugs and congratulations.
Watch Jennifer Lawrence speaking to Entertainment Tonight below: