Tessa talks to guest host Sean Hayes about the 'Westworld' season four premiere, doing interviews with puppies, her dog being part chihuahua, taking a selfie in her Thor costume, being really bad about spoilers, Natalie Portman standing on a deck to appear taller, working out with Natalie and Chris Hemsworth, we see a never-before-seen clip from the movie and Sean's husband/Marvel superfan Scotty asks Tessa some questions about the movie. Watch Jimmy Kimmel Live! WEEKNIGHTS 11:35/10:35c on ABC. Stream on Hulu.