Yay! Judi Dench gets star billing in ‘Red Joan’! But boooo — she’s only in it for a little while

This based-on-fact drama, about an elderly widow abruptly arrested by the British Secret Service on suspicion of providing classified information to the Soviet Union during World War II, mostly takes place in the past, with Sophie Cookson playing a young version of the title character. Rating: 2.5 stars out of 4.