'Joker' just unveiled its first teaser at CinemaCon, and the hype is real

Like so many comic book movies, Todd Phillips' Joker has been shrouded in mystery.
But at CinemaCon Tuesday, we were finally allowed a peek behind the curtain — and what we saw might surprise you. 
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Phillips, on stage to introduce the first teaser trailer, acknowledged the rumor and speculation that's surrounded his project. "There's been a lot of chatter about what this film is and what it isn't, and most o