2/5
The Bourne Legacy, the fourth Bourne movie, has a very confusing plot. The general outline is that a covert government agency is killing all their secret operatives after a benign-appearing YouTube video is leaked. One black ops agent (Renner) escapes death and travels to the Philippines with a scientist (Weisz) so that he can inject himself with a virus. Yes, it does sound absolutely preposterous. And to make matters worse, there are simply too many story lines and too many characters to keep track of. The director, Tony Gilroy, seems to focus on the wrong things in each scene, as if uncertain what the movie is about. He goes back and forth between time and place way too frequently without any real explanation or clear motivation. This results in an extended second half that doesn't make sense within the film's logic, where seemingly ever character (big, small, good, bad) takes enormous risks out of proportion to expected benefits.
Superficially, the movie looks very exciting. There is a lot of anger and yelling, a lot of drama and histrionics. But the action scenes aren't so much exciting as they are filled with loud action-y music. Instead of gunfights and fistfights, we get running and chasing. Instead of action, we get super-fast cuts. I estimate that the average length of each shot is around 1 second. Not to spoil the movie, but Matt Damon never appears in it, although his character is unendingly discussed peripherally. To make matters worse, it has an extremely unsatisfying ending. Do not recommend.
IMDb link: http://www.imdb.com/title/tt1194173/