At the end of a round of "Russell Roulette," Russell Brand gets a surprise when Arthur co-star Greta Gerwig appears! The actress explains that stepping into the role made famous by Liza Minnelli was a little intimidating. "I'm a huge Liza Minnelli fan," she tells Rachael. "I grew up as a musical theater kid, so Cabaret and Liza with a Z, I watched those all the time. So I was really scared because I didn't want people to think that I thought I was as fabulous as she is. I don't! I'm not that fabulous!"

In the movie, the billionaire Arthur goes out of his way to impress Greta's character; watch the video above to hear the most impressive thing a guy ever did to woo Greta!