I waited three decades before watching this movie, and I’m happy I finally got around to it. I generally dislike films geared toward children, and the advertising back then didn't encourage me – but Macauley Culkin is genuinely likable in this story about a boy who gets left behind at home during Christmas when his family goes to Paris. He finds himself alone, confronting two would-be burglars (played by Joe Pesci & Daniel Stern). After an initial period of feeling uneasy, he quickly settles into using practically every device and animal in his large house to stop their plans to steal things. It’s essentially centered on the child—and this one succeeds well. The comedic moments are created to elicit amusement, not cause harm – even though getting your head set ablaze with a blow torch or being hit in the face by a hot iron might inflict more damage than what's shown here. That’s part of the enjoyment; it's intended as lighthearted entertainment, like a contemporary Laurel & Hardy story, and the outcome is predictable from the start. There's also a slightly deeper message about feeling isolated—not just for “Kevin,” but also for his older neighbor "Marley" (Roberts Blossom), and there’s that touching scene on the airplane when mother Catherine O'Hara realizes they didn't just forget to fix the garage doors before leaving! A wonderful, instantly recognizable score from John Williams completes the experience.

Source on TMDB