“Shrapnel” (** out of four) was a detached action melodrama about a former Marine (Jason Patric) and his former war buddy (Cam Gigandet) who team up to go after a Mexican drug cartel after the disappearance of his daughter but soon find that things are about to get really ugly on the sides of the border. Film has the requisite amount of gunplay and violence for genre fans but overcome by a sense of ennui and boredom. Typical one-note performances from Patric and Gigandet don’t help. Similar story to “Taken” and “Rambo: Last Blood” but not up to the artistry of either.