Amanda Seyfried Jokes ‘It’s About Time’ She Plays a Cop as She Teases Mamma Mia 3 (Exclusive)

Amanda Seyfried and Nicholas Pinnock chat with ET’s Rachel Smith about their new sequence, ‘Long Bright River,’ streaming March 13 on Peacock. The actors open up about enjoying cops within the present and why the storyline is a vital one to inform. Plus, Amanda teases ‘Mamma Mia 3’ and the way quickly it would go into manufacturing.