The star told Vulture that The Dictator was quite a change of pace from her previous films.
"I was really just excited to work with Sacha. I was sort of ready to play any role that they wanted me to," Faris admitted. "I [also] loved sort of playing a character that's not vain, and clearly not too concerned with the aesthetic end.
"And I think part of the comedy is that his character has never met or known a girl like that. For me, it was awesome. It was great."
Faris added that she shares political convictions with the left-wing activist she plays in The Dictator.
"I mean, I grew up in Seattle; I went to the University of Washington. I think there was a time in my life where I felt like maybe I identified with that gal a little bit," the star recalled.
"I used to sort of consider myself a feminist, an environmentalist; and I still have some of that in me, but I've done so many offensive comedies I'm now worn down to a little nub of... nub of an activist. But I think I love those elements of her."
Faris recently revealed that 90% of The Dictator was improvised.
The Dictator is now playing in US and UK cinemas.
Watch a trailer for The Dictator below: