Starring Emma Thompson and Jason Watkins, the drama was called "gripping" by critics. The plot sees Thompson portray Fiona Maye, a judge who finds herself in the middle of a life-changing case. Who's in The Children Act? Where can I watch The Children Act? Other Emma Thompson movies you can stream nowSony PicturesIf you already have Prime Video, then you can stream The Sheep Detectives, Carrington, King Lear and Johnny English Strikes Again.