Very poorly paced and written, and awkwardly acted by Nick Stahl. The Terminatrix doesn’t have much to do, and they don’t give her any cool powers. She seems a step backwards (and she is vanquished in a rather simple way as well) from Robert Patrick’s T-1000 from T2. The huge flaw at the center of the movie, is that the one interesting thing that she can do, shoot a laser out from her arm, would have invalidated the need for a chase in the first place as she could have easily killed Connor and company from quite a distance, let alone when she’s right on top of them.
There is an enormous action scene about 30-35 minutes in that involves trucks and cranes and many other large objects. But it isn’t really well put together and the special effects are hardly seamless. It’s just noisy. Then there isn’t another action scene for about 45 minutes, and it’s more of an afterthought, like they realized they hadn’t had any action for a while.
The ending is a decent idea, if it were only explored and not used as a device to get the two main characters together, rather than actually feel the consequence of the act. It’s a shame that director Jonathan Mostow has sunk to this level after the terrific genre movie Breakdown, the action cousin to the original The Vanishing.