In 1969, as the wider world focused on such events as Apollo 11’s mission to the Moon, long-simmering sectarian tensions in Northern Ireland boiled over, initiating a period of religious and political strife, known as the Troubles, that would last for the next 30 years.

This adaptation of a series of children’s books by Norman Bridwell, the first of which was published in 1963, is silly but mostly harmless.

It may have been author Peter De Vries rather than baseball great Yogi Berra who first observed that “nostalgia ain’t what it used to be.”

A mixed bag, both ethically and cinematically, director and co-writer Chloé Zhao’s Marvel Comics adaptation “Eternals” (Disney) is presented on an undeniably large scale.

An intriguing but largely forgotten historical incident is skillfully recounted in the documentary “A Samurai in the Vatican.”

There are many knights but not much shining armor in the grim historical drama “The Last Duel” (20th Century).

Charming and uplifting, “The Oratorio” recounts the efforts of those who help to run the 200-year-old St. Patrick’s, along with others, to remember and recreate a largely forgotten operatic performance that took place there June 22, 1826 — and that represented a milestone in the cultural history of New York City.

The gripping sci-fi epic “Dune” (Warner Bros.) arrives on screen with a notable real-life backstory.

Overall, the show makes for a tiresome course in youthful amorality. So viewers would be well-advised to opt for a different elective.

While the series takes an ambiguous approach in its treatment of faith, “Midnight Mass” is logically flawed as well as lurid.