Did the Four Horsemen know Ruffalo was their benefactor from the beginning or did they only find out at the end? Regardless, neither works at all when looking back at the movie. If they knew from the beginning, then there would be no reason to stage the entire car chase with David Franco's death after the FBI ambushed him at the apartment. Ruffalo could have just given them a heads up that they were coming to the apartment or he could have even just shifted the FBI's direction from the apartment and avoided the situation entirely. But if they were set on faking Franco's death, did they only count on a car chase? What if the cops hadn't commandeered a vehicle? Did they have a backup plan for faking his death if it turned into a foot chase? And if they only found out about Ruffalo at the end, why did they stick to only duping Caine, Freeman and the safe company? They were so skilled at performing heists, it would be pointless to waste their time on just those three instead of finding the richest person/bank possible and robbing them blind.

On a somewhat similar note, why did Ruffalo act like a clueless dolt even when no else was around? For instance, Melanie Laurent is sleeping and then Ruffalo is awake. He notices a book about The Eye and looks puzzled and confused by it. He already knows all about The Eye, there's no reason for him to read the book like it holds a bunch of secrets. Better yet, why even follow any leads in the case at all? Wouldn't it have made more sense for Ruffalo to sabotage the entire investigation?

Not to mention, Ruffalo's motivation and backstory becomes beyond convoluted and just a total mess after the twist is revealed. Ruffalo wanted to get revenge on everyone he blamed for his father's death. That's a fine motivation but the way he went about it is nonsensical. Why spend years becoming an FBI agent if the way he achieved his goal was through a magic show / heist? It'd be like joining the military and then using a bakery to get back at his enemies. Why not just use the tools already at his disposal? He's in the FBI, wouldn't it be easier just pursue cases against those involved? Or, since he's apparently amazing at covering his own tracks, so why not just break into Morgan Freeman and Michael Caine's homes and plant incriminating evidence on them? There's no reason to go through the insanely meticulous planning of the most elaborate magic show / heist ever.

Why did Ruffalo even blame anyone besides Michael Caine? Caine's company refused to pay the insurance. That's a totally acceptable reason for Ruffalo to go after him, but what did Freeman and the safe company do to warrant revenge? Freeman made his living by exposing magic tricks. Ruffalo's father decided to come up with a suicidal trick that couldn't be exposed and died while performing it. What exactly did Freeman do wrong? It's not like he tampered with the safe so his dad couldn't escape. All he did was show people how tricks were performed. That hardly justifies locking Freeman up for the rest of his life.

As for the safe company, Ruffalo says the safe warped at the bottom of the river and trapped his dad. Last I checked, safes are made for the sole purpose of securing objects against theft. They do not make safes to function as an escapable pod at the bottom of a river. How is the safe company even remotely at fault for his father's own stupidity? His father decided to preform a magic trick without first properly testing it's safety. That's on him, not the safe company. Imagine if his father had died while preforming a trick that involved swallowing a grenade, only for the grenade to go off while it was being swallowed. Would Ruffalo blame the weapons company for making a grenade that couldn't be swallowed safely? No, because that's fucking stupid, just like this entire piece of shit movie.