Tonight! New concerns for Christina Applegate amid her MS fight. Plus, Natalie Portman shocks fans with baby news. Then, ET exclusives from Cinemacon in Las Vegas with the cast of "The Avengers" and "Toy Story" 5. Plus, meet Disney’s next breakout star becoming the real life Moana. Also, Oscar winner Billie Eilish on teaming up with Oscar winner James Cameron. How they’re taking a concert experience way beyond the stage. And, KJ Apa transforms into Jimmy Stewart.