i'm francis riviera. >>> a night of glitz, glamor and emotional moments at the 89th academy awards. it's being overshadowed by a major screwup. it happened in the final moments of the ceremony when the oscar for best picture was mistakenly given to "la la land" instead of "moonlight." we're live outside the theater in hollywood with those details. jennifer, how could all this happen? >> reporter: well, it was just a mix-up of the envelope. that's what price waterhouse cooper said in a statement they just released. it was the best argument though for watching all the way to the very end. it was a twist that nobody saw coming and it's all anybody's talking about. >> "la la land." >> reporter: for several minutes it appeared a best picture win had capped a magical seven oscar night for "la la land." only it didn't. >> there's a mistake. "moonlight." you won best picture. >> reporter: during acceptance speeches show producers realized presenters faye dunaway and warren beatty had read from the wrong card. the audience was stunned. so was the "moonlight" team. >> clearly, even in my drea