His Dark Materials begins on BBC One on Sunday night at 8pm
... but check out what happens when one of the stars of the show met a group of school kids on a trip!
No.1 daughter @eleanorrgarvey is on a @StanwellSchool trip to #NYC. If that weren't enough she met @Lin_Manuel who rapped for her, on the spot, about his time in #Cardiff and #HisDarkMaterials That's all pretty cool (#embarrassingdad) ! @BBCOne @BBCWales pic.twitter.com/EogYEjCx2a— Michael Garvey (@MichaelrGarvey) October 29, 2019