How does Blake know that Bruce Wayne is Batman?
In The Dark Knight Rises at the scene when Bruce first meets Blake (where the latter goes calling at Wayne Manor), the way Blake confidently asserts to Bruce that Batman is needed seems to suggest that he has more than hunch about Batman's true identity.
How did he come across that (it is later acknowledged by Bruce in the car scene, when he says that Batman could be anyone...), and why does Bruce accept his assertion?
Best Answer
Blake doesn't have a full confirmation that Wayne is Batman, but as he explains to Bruce, he always had an inkling.
Blake talks about losing parents is something no child can ever move on from, not someone stuck in an orphanage like him, or someone like Wayne, with boundless money and potential. Its a kind of unspoken comradery that only those in the situation can understand, hinted at when Blake says
Blake: No one knows how it feels to be angry in your bones.
From this, and from the time that Bruce visited the boys home, the boys always had a fantasy of Bruce being Batman, as a bit of a joke. But Blake could tell from Bruce's face that day, from the look and smile he gave everyone, that it wasn't just pure fantasy. As Blake also explains:
Blake: I know that smile you put on...its the same one I taught myself
From this, Blake has a gut feeling that Bruce isn't who he lets on to everyone, billionaire playboy extraordinaire. But something different.
Not to mention one big element from the movie, Bruce goes into seclusion almost around the same time Batman disappears. Putting these pieces together, Blake makes the assumption that Bruce is Batman, and confronts him with Gordon's shooting.
This turns out to be correct, of course, and garner's Bruce's trust because Blake is someone who can understand Bruce's situation, coming from it himself. And Blake is also someone who share's Batman's ideals, as he says:
Blake: I don't know why you took the fall for Dent's murder, but I'm still a believer in the Batman
Showing us and Bruce that he has, at least similar, ideals to how Bruce was when he first put on his cape and cowl. And also the reason why he trusts Blake with the cave at the end.
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How did Blake find out Bruce Wayne is Batman?
When cop John Blake was a child, Bruce Wayne visited a boys' home/orphanage run by the Wayne Foundation. And because his parents had also been tragically taken away from him, Blake was able to tell that Wayne was Batman by looking at his face. At his face.Does Blake know that Bruce is Batman?
Blake tells Bruce that the city needs Batman, and that he knows Bruce is Batman, he goes on to tell Bruce about his childhood as an orphan and seeing Bruce and recognizing himself in Bruce.Does everyone know Bruce Wayne is Batman in Dark Knight Rises?
Near the end, Blake says, "... no one's ever going to know who saved an entire city." which implies that they don't know that the Batman is Bruce Wayne. Then Gordon says, "They know. It was the Batman.", which again implies that he didn't reveal Batman's identity.Did Robin John Blake become Batman?
This was confirmed when Blake revealed that his legal name is Robin, and discovered the location of the Batcave at the end of the film, indicating that he will become a masked vigilante and replace Batman as the protector of Gotham City.【spoiler】The Dark Knight Rises (clip11 part 2) -\
More answers regarding how does Blake know that Bruce Wayne is Batman?
Answer 2
The answer is found in the wearing of "masks." Blake, being an orphan, explains that he always put on a front or wore a figurative mask to conceal his misery and pain. He had to pretend to be someone else. When he met Bruce Wayne at the orphanage, with the two girls around his arms, he knew that Bruce was putting on a show. Blake understood the pain Bruce had experienced being an orphan. Since Blake's parents were murdered as well, he probably also understood the anger. He ended up putting two and two together.
Answer 3
In the scene where Blake visits Bruce Wayne he tells Bruce about what Gordon had told him, the underground army and the masked man. Blake tells Bruce that the city needs Batman, and that he knows Bruce is Batman, he goes on to tell Bruce about his childhood as an orphan and seeing Bruce and recognizing himself in Bruce. In many different renditions of the Batman story the character of Robin (Blake in this case) will discover that Bruce Wayne is Batman and become his sidekick.
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Images: Bruce Clark, Henry & Co., Bruce Clark, Jim Fawns