Dong-won Kim's R2B: Return to Base goes for the top gun.For a 110 minutes of screen time, the excitement is lacking. The story is predictable and a number of the characters are underdeveloped. There are moments when the film is seemingly trying to be funny, but it never reaches the pinnacle of laughter.The jet and action sequences are passable. Once the end credits finish rolling, there isn't much to remember about any of it. There is also a heavy reliance on CG, which is decent enough. Still, all the military hardware is the highlight of the film.Rain does have his moments, although not award winning. Shin Se-kyung has a pretty face, but delivers a performance more geared toward a drama. The rest of the cast do what they can with the characters they are given.R2B: Return to Base has its share of pros and cons. At the end of the day, it is a watchable film out of Korea.