The 39-year-old actress said she does not understand the reason as to why people mistake her for the 'Definitely, Maybe' star, reported Contactmusic.
"I get Isla Fisher all the time, still. And I know Isla, and for a while our kids went to the same dance school. When I'm with Isla, we both look at one another and... I get it but I don't get it," Adams said.
"But just like I tell her, it could be a lot worse. I could be mistaken for a lot worse people," she added.