For his new documentary Cartel Land, a film about vigilante movements against the Mexican drug cartels, director Matthew Heineman knew he didn't want to make a "policy film." So he put himself into the middle of the action to make the compelling feature. The characters are actually real. Heineman imbedded himself with two different groups, one in the States and one in Mexico. In Mexico, Dr. Mireles leads a group of armed Mexican citizens. In the States, war veteran Tim "Nailer" Foley leads a group of armed citizens. Heineman shot some 500 hours of footage and spent a year working on the movie. The Oscar-nominated film screens at 7:30 tonight at the Capitol Theatre. Regular admission rates apply. (Niesel)