Ep 21. 10/16/18 (Keira Knightley, Kathryn Hahn, Joe Zimmerman)

In the 21st episode of the fourth season of The Late Late Show with James Corden, the guests joining the host include actress Keira Knightley, Kathryn Hahn, and Joe Zimmerman.

Opening with a funny skit and monologue by James Corden, the show picks up pace as Keira Knightley joins James on the couch. Keira talks about her latest movie "Colette" and shares her experience of playing this versatile character. She also talks about her family and husband and shares some anecdotes about her daughter. James takes the conversation further and talks about various other topics with Keira, like their shared love for singing, and they sing a few lines of a song.

The next guest to join James on the couch is Kathryn Hahn. Kathryn is an American actress widely known for her performance in "Transparent" and "Bad Moms." Kathryn talks about her ongoing project, "Private Life" and the experience of working with the director Tamara Jenkins. She shares some interesting stories from behind the scenes, and James jokingly teases her about her role as a birthday party clown in an early job.

The show reaches its finale as Joe Zimmerman, an American comedian, joins James on the couch. Joe talks about his experience of performing in the comedy world and interacts with James on various topics. They talk about the upcoming political scenario in America, and Joe shares his witty insights on the current state of politics in the country.

Overall, the 21st episode of the fourth season of The Late Late Show with James Corden is packed with entertaining conversations, humorous exchanges, and witty observations. With a star-studded guest list, the show promises to be a delight for its viewers and is a perfect way to unwind after a long day.