Out of every Mission Impossible movie, i liked MI 7 Dead Reckoning the least. The action was very good, story line was OK OK not bad but i noticed that MI 7 is stretched unnecessarily. It feels like 2 movies made out of 1 (MI 7 part 1 and MI 7 part 2).
Also the Tom Cruise energy was missing from this one.
Overall it's worth watching one time.