1 With its surprisingly large array of salvaged home movies, diary recordings and scribbled artwork, "Kurt Cobain: Montage of Heck" is perhaps the most personal documentary you'll ever see of a deceased star. It does hit home how deeply committed an artist the Nirvana frontman really was. His deep troubles are also on full display because director Brett Morgen ran with the family's blessings and stretched things to sometimes uncomfortably low moments, the only upside of which are the rare recordings and unmistakably classic songs heard throughout. Premieres Monday on HBO, 8.p.m.

3 From the very first word in the new Avengers blockbuster, you know you're in for a Mach 5 roller-coaster ride, with many stops at Ferris wheels, bumper cars, water slides and merry-go-rounds. "The Avengers: Age of Ultron," an industrial-powered Marvel/Disney entertainment behemoth piloted by writer/director Joss Whedon, starts with a hello that Uncle Walt and Stan Lee would never approve, and that's the first shot in a barrage of clever, naughty, moving, inventive ideas fired at Gatling-gun speed.

2 Lee Blessing's new play "For the Loyal" at the Illusion Theater escapes the bounds of reality to shine a light on a complex subject: sexual abuse and our response to the crime. He used the real-life case of a Penn State assistant football coach who was accused of assaulting young boys. A young assistant who witnessed some abuse tells his wife, who becomes the play's agent of change. Blessing plays with time and traverses mental space and imagination in a sharp instrument of exploration. illusiontheater.org.

5 Momo the hiding border collie — an Instagram sensation, and the subject of a popular book last year — is back, still hiding, still adorable. "Find Momo Coast to Coast" is the second collection of "Where's Waldo?"-type photos of the dog playing hide and seek. Look for Momo in owner Andrew Knapp's pictures of New Mexico sand dunes, New York's Grand Central Station and Seattle's Pike Place Market. You might not always find him, but he's always there.

4 The website Literary Hub has chutzpah and a discerning eye, cherry-picking a satisfying daily mix of book news, reviews and musings on authors living and dead. (Trollope is trending, you know.) The antithesis of stuffy (Roberto Bolano's birthday was noted by dubbing him "the Tupac Shakur of novelists"), the site combines the efforts of more than 150 partners ranging from giant publishers to indie bookstores and small presses (including Minnesota's own Graywolf and Milkweed). lithub.com.