The Australian comedienne, who currently stars in comedy movie Bridesmaids, said that fellow Aussie Kidman once gave her two loans to help her relocate to New York and embark on her career.
Wilson told Woman's Day magazine: "I joined the Australian Theatre For Young People [in Sydney] where Nicole started out when she had all that crazy red hair. She saw me and gave me $12,000 (£8,000) as a kind of scholarship to go wherever I wanted.
"I went to study in New York and it changed my life forever. Then a few years later, Nicole gave me another $3,000 (£2,000) as a prize for winning the 'Best Actress' award at the Tropfest short film festival in Sydney. She really has made a huge impact on my life.
"People say I have an incredible life and that everything that has happened to me is crazy. Actually when I think about it, I guess they're right!"
Wilson recently revealed that her audition for Bridesmaids was "weird", adding: "[Kristen Wiig] asked me to pretend I was doing drugs in a bathroom. I don't do drugs, so I pretended to snort cocaine through my belly button. Then they said, 'Tell us about your love-life.' So I made all this crazy stuff up. They thought that was hilarious, so I got the job."
Bridesmaids director Paul Feig recently revealed that he would love to do a sequel to the comedy titled Bridesmaids Revisited.
Watch the Bridesmaids trailer below: