Having a bossy turtle whose voice only you can hear as your best friend ain’t so great in “Max and Josef: Double Trouble.” First Swedish feature to blend CGI character animation with live action is a hectic but delightful family pic whose surface fantasy conceals complex — even borderline-disturbing — insight into one little boy’s problems adjusting to a new baby sis. Only grownups will fully grasp that content, while kids will enjoy slapstick and imaginative aspects.
Eight-year-old Max (Axel Skogberg) is accustomed to being the “baby” of his family. He’s initially enthused that mom (Tintin Anderzon) is expectant again. But the reality of a screaming, demanding infant is something else. Already overwhelmed by the still-expanding brood in their cramped middle-class home, ma and dad (Per Svensson) sop Max’s desire for a puppy with birthday gift of tortoise Josef. Voiced by Jonas Karlsson, expertly animated turtle is cranky and paranoid, a reptilian Iago — embodying Max’s less-kind sentiments toward his new sibling. Often broadly funny pic subtly works in several instructive angles, including the hyperactive hormones of Max’s teen siblings and the neediness of a single-dad neighbor (Johan Rheborg). Tech package is snappy.