When Sarah is traveling to the Cayman Islands, the camera pans out to her being on a 737, which also appears grounded (engine coverings and wheel chocks). Two scenes later, a clip of a totally different aircraft taking off, a Saab 340, is played.
In the hotel, when the goons call Bobo to get the room number, he said 528. Later when Bobo and Sarah leave the room, the number on the door is 526.
It seems incomprehensible that someone could write in the script that the object of concern was a "hard drive" instead of a "flash drive". Equally ridiculous is that something so foolish could get by everyone to make it onto the screen.
When Donnie's henchman drops the grenade it shows the large hole in the bottom indicating it is a prop/inert grenade.
The "McGuffin" which everyone calls a "hard drive" is really a USB thumb drive (also called a flash drive). No one who's ever seen one would call it a "hard drive".
At approx., 1hr 31minutes 'dead' guy on the left of screen opens/closes his eyes.