‘Minions: The Rise of Gru’ is long on silliness and songs, and short on plot

Five years after the last “Despicable Me” movie and a dozen years since the first, “Minions: The Rise of Gru” extends the animated franchise without exactly rising to the occasion, delivering a mundane exercise set to an odd 1970s soundtrack. Loud and colorful, it’s likely to divert smaller kids whose comedic tastes run toward rapid-fire mumbling, pratfalls, the occasional exposed yellow butt and flatulence.