Capra handles James Hilton’s idealistic novel with skill and elegance. It’s really pleasing to witness a presentation that feels true to Capra’s original ideas for this story; the restoration reveals the wonders of cinema in a truly enjoyable way. Robert Conway, a British diplomat, assists several people—including his younger brother—in fleeing a Chinese revolution aboard a passenger plane. However, things don't proceed smoothly when the aircraft is hijacked and diverted toward the Himalayas and Tibet. The pilot falls ill, forcing an emergency landing, and upon exiting the plane, the passengers are met by inhabitants of the Valley of the Blue Moon, a stunning and tranquil realm called Shangri-La. Shangri-La is breathtaking; there’s no sickness, war, or animosity to be found, and the scenery resembles paradise. Residents live considerably longer than what's considered normal elsewhere, creating an ideal existence beyond imagination. Conway and the others initially express doubt but eventually grow to appreciate this secluded sanctuary. That is, with the exception of the younger Conway (George), because as always happens in sizable groups, problems surface and questions linger. The film possesses a lovely, ethereal feel, clearly intended as a romantic fantasy, and the production values enhance this captivating narrative. The scenery is gorgeous, the music complements the action perfectly, and the performances are excellent, while Capra’s passion for the subject matter shines through in every scene. Fortunately, all of that effort is supported by a strong story; it's the storyline, especially what happens in the final third, that ultimately makes this film so special. It's simply magical. 9/10

Source on TMDB