Plot hole: Where do the flyers come from that are in the bags that are carried out of the vault and into the van? Danny and Linus couldn't have taken them down there and there is no room with the Chinese man. They are carried out to the van before the SWAT team appears, which means they'd have to have been in the vault to start with? In the commentary by Steven Soderbergh he acknowledges that there's no explanation.
Plot hole: When Bruiser (the man who's supposed to beat up Danny) is faking the noises of punching Danny, the two thugs can hear him through the door. But earlier, he punched Danny by accident, then started to talk to him. The thugs should have been able to hear their talking through the door as well.