The 34-year-old star, who gave birth to her son Jonathan 12 months ago, admits being pregnant whilst filming her upcoming movie "Colossal" has improved her performance as lead character Gloria, reported Femalefirst.
"I think that my pregnancy may have added a layer to my performance in this one because I was so happy all the time and I just felt this great joy and I love the idea that was who Gloria was.
"She wasn't depressed. She wasn't put upon. She actually was a party girl and she always brought the fun and I think my baby did that too," Hathaway said.