Wow, really surprised it flopped so badly. Even with the so-so reviews, I figured more people would be in the mood to watch Arnold kick ass in a movie again. At least enough to put it at #3 or 4 (and higher than some nothing Mark Wahlberg movie I never even heard of before this!)
Although to be fair, he did look awfully old and slow and tired in Expendables 2. I wouldn't be surprised if that killed a lot of people's interest in seeing him again....