“The House with a Clock in its Walls” is an atmospheric PG-rated horror movie for kids based on John Bellairs’ novel. Jack Black and Cate Blanchett star in this story about witchcraft, a young kid and a particularly spooky house. Fans of “Harry Potter,” “Goosebumps” and “Lemony Snicket” will find much that’s familiar here, but this adaptation isn’t quite as successful as any of them. Plus, “The House with a Clock in its Walls” is likely too scary for very young kids. Blanchett and Black are fun together, though. Are you in the mood to be hammered with bubblegum philosophizing in an emotionally manipulative multigenerational drama? When then, “Life Itself” is the four-hankie weeper for you. Written and directed by Dan Fogelman, the creator of TV’s tearjerker, “This is Us,” “Life Itself” has an outstanding cast that includes Oscar Isaac, Olivia Wilde and Anette Bening in a tale about love, loss and the human condition. These fine actors lend some gravitas to the proceedings, but the story is so packed with tragedy that it seems downright sadistic. Also, one of the characters drones on about her thesis on “The Unreliable Narrator.” It’s as if Fogelman were going for self-parody,…