“Gringo” (*** out of four) was a wildly uneven but entertaining multi-character melodrama about an easygoing businessman (David Oyelowo) who finds himself crossing the line from family man to wanted criminal as he’s double-crossed by ruthless business couple (Joel Edgerton and Charlize Theron) and other adversaries (Amanda Seyfried and Thandie Newton). Film veers often jarringly between lighthearted comedy, sharp business satire, and dark action drama but is peppered with many arresting scenes and held together by a first-rate cast even as it goes on too long. Oyelowo is top notch in particular. Directed by Joel’s brother Nash Edgerton in a style obviously inspired by early-period Robert Altman