Bob Marley: One Love (out Feb 15) is not a bad film… but it’s not an eye-opening one either. In going with formulaic subplots and artificial dialogue (“his guitar is his machine gun”), the four-person screenwriting team have played it too safe. There are positives to be found and actor Kingsley Ben-Adir does an admirable job in imparting the title character’s feel-good mellowness onto audiences. Grade: B-.