Sienna Miller on Meeting Martin Short & Steve Martin, Curb Your Enthusiasm & Working with Costner

Sienna Miller talks to guest host Martin Short and Steve Martin about meeting them at the Sunset Tower, Larry David casting her on “Curb Your Enthusiasm,” and working on Horizon: An American Saga with Kevin Costner. SUBSCRIBE to get the latest #Kimmel: http://bit.ly/JKLSubscribe Follow Jimmy Kimmel on Instagram: https://bit.ly/KimmelInstagram Follow Jimmy Kimmel Live on Instagram: http://bit.ly/JKLInstagram Follow Jimmy Kimmel Live on TikTok: https://bit.ly/JKLTikTok Like Jimmy Kimmel on Facebook: http://bit.ly/KimmelFB Like Jimmy Kimmel Live on Facebook: http://bit.ly/JKLFacebook Visit the Jimmy Kimmel Live Website : http://bit.ly/JKLWebsite About Jimmy Kimmel Live: Jimmy Kimmel serves as host and executive producer of Emmy® nominated “Jimmy Kimmel Live,” ABC’s late-night talk show. “Jimmy Kimmel Live” is well known for its viral video successes, with over 16 billion views and more than 19 million subscribers on the show’s YouTube channel. Some of Kimmel’s most popular comedy bits include Celebrities Read Mean Tweets, Lie Witness News, Halloween Candy YouTube Challenge, Jimmy and Cousin Sal pranking Aunt Chippy and music stars like Rihanna and Dua Lipa surprising Jimmy in the middle of the night.