Actress Kate Winslet has shared a funny anecdote on what she did when billionaire Richard Branson's private Caribbean home caught fire last August.

This story might sound crazy to you, but it's true!

When Winslet was suddenly awakened by the fire at Branson's home, she said she didn't react entirely as expected.

The fire was actually very scary. We woke up at 4:30 in the morning to yelling that there was a fire. I jumped up and ran immediately towards the fire, but then realized we might die, so turned around, told my children to go in and shut the door, and then thought, 'Now what do I do?', she said during BBC America's The Graham Norton Show. The program will be aired Oct. 29 at 10 p.m. Eastern time.

After realizing that going toward the fire wasn't the safe idea, she thought about her attire. I ran into the bedroom to put on a bra. In terrible moments like that, you do the strangest things. I started to put on a bra and thought 'No, that's going to take me too long,' so off came the bra, on came the t-shirt, I grabbed the children, and I picked up Granny, she said.

The 36-year-old was modest about her role that night in saving Branson's mother, Eve. She said, No, I didn't save her life. I carried her down the stairs is the truth of it. We were all at the top of some very slippery stone steps and in the middle of a hurricane -- it was so dramatic, there was lashing rain, and it really did feel like being in a movie.

I have to say Eve Branson is an extraordinary stoic, powerful lady, and she could have totally made it out on her own. I just helped that tiny little bit, she added.