Summer blockbuster movies are like roller coaster rides, as soon as you get off you either want to ride again or you're glad that the twists and turns are over. The same can be said for Angelina Jolie's new film "Salt."

Jolie is enigmatic Evelyn Salt, a C.I.A agent, or is she? She's in fact a full throttle double-double agent trained in Russia who is in the same league as Lee Harvey Oswald. Salt's story beings in a North Korean torture cell and she's soon released because her husband has petitioned the state department. She doesn't love her husband since he's only part of her cover, but is he?

Directed by Phillip Noyce, the story of this double crossing agent is both fluffy and convoluted with car chases, explosions, shoot outs and a high body count. In all the action-packed mayhem, Salt only receives a flesh wound on her perfectly exfoliated skin: C.I.A. estheticians do beautiful work. This is Manchurian Candidate meets Lara Croft with detours through Jason Bourne territory.

"Salt" truly belongs in the spy film genre of the spy who doesn't know she's a spy. The deep cover is so deep that the real identity isn't even known to the agent and in most cases the audience.

As an action star, Jolie has few rivals especially when she out foxes pursuing federal agents, scales the sides of buildings, blows a hole through a wall using liquid cleaner or explodes a bomb under a New York City church, which sets off a chain reaction of events that begins World War III. Or does she? Audiences do experience the powerhouse pull of Jolie's stardom. It's Jolie on screen, not character Salt. Or is it?

The film's tag line is "Who is Salt?" This is a simple yet perplexing question leaving audiences wondering what the answer could or should be. With fine supporting roles by Liev Schreiber and Chiwetel Ejiofor, "Salt" does not heavily rely on character development. It does, however, rely on good action sequences as when Salt jumps from moving truck to truck on a freeway in a high stakes pursuit.

"Salt" overall lacks the gravitas of other summer action films like Indiana Jones, Star Trek or Ironman. Not yet. A franchise must be built slowly.

Just like a merry-go-round, Ferris wheel or a Himalaya ride at an amusement park, "Salt" is pure fun. Why ask who, why or because, it doesn't matter, just sit back and enjoy, CGI funhouse, hall of mirrors or haunted house, it's just a lot of excitement to watch so don't ask too many questions about physics or logical plot development, it only spoils the ride.

Watch the trailer: