Danny Boyle’s ‘28 Years Later’ begins with eerie promise and striking visuals but loses steam midway, torn between horror and sentiment. It delivers in parts, though sky-high expectations keep it from making it truly memorable.

Following 2002’s ‘28 Days Later’ and 2007’s ‘28 Weeks Later,’ the gore-soaked third installment of the franchise, starring Jodie Comer, Aaron Taylor-Johnson and Ralph Fiennes, is short on wit and narrative coherence.