My 2 cents
I think the worst thing a film can be is boring. It can have a misjudged performance, dialogue that doesn't stick with you, bland direction, but being boring is the worst sin and that's what this film was.
And as much as I like Hemsworth as Thor, I couldn't buy him as a genius coder / hacker / detective / bad ass all at the same time.
Maybe this is a preconceived notion, but he had to be the most fit and well adept at hand to hand combat computer hacker to walk the planet.
Mann can do great shootouts and action, but love scenes, flirtatious dialogue, exposition, and in this film, casting were all pretty bad.
The scene when they giver to recover a hard drive in the power plant. They very clearly say, don't let your tempurature go above 104 and if you go down you'll be left there because the other cant take you back for their safety.
What happens, someone's temp goes to 105, they fall down and ... the other two guys pick him up and they all get out alive. Like okay.
And Hemsworth's temp is at 104 the whole time and swinging an axe doesn't exert him enough to raise his temperature even 1 degree, but one dude who is just walking passed out?
It almost felt like the woman should have been the hacker and Hemsworth should have been the US Marshal sent to keep an eye on her? Like if you want Hemsworth to kick ass, fine, he's good at that, but I cannot believe that he's a genius from MIT who can also stab a hit man in the chest twenty times in thirty seconds.