3. Mobile Phone Sonar – The Dark Knight

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Again eschewing the hitherto realism of The Dark Knight, this scene has Bruce Wayne informing Lucius that he has managed to create a visual map of Gotham by way of the entire city’s cell phone collection, using a virus to hijack their phones and use the microphones to map images much like yes, sonar. This totally ridiculous idea to discover The Joker’s location challenges our suspension of disbelief somewhat, given that the sheer execution of such a plan is pawned off with just one line of explanation.

The only saving grace is Morgan Freeman’s Lucius Fox, who doesn’t seem to question the credulity of such a plan, but does at least see the ethical issues associated with spying on an entire city in order to catch a terrorist.