Box Office Prediction: $840 million Why It'll Be A Hit: Because the mobile phone game is nothing short of a worldwide phenomenon, generating billions of dollars in profit without even mentioning its massive merchandise line, array of theme parks and all manner of ridiculous product tie-ins. The animation looks slick and colorful, the gags look broad for the kiddies, and it's surely going to kickstart a massively successful franchise of animated films. Why It Could Disappoint: Angry Birds may have a month to tear up the box office before Finding Dory lands, but Alice Through the Looking Glass could hijack its family audience just a week after release. Otherwise, even if it gets bad reviews, there's probably no stopping Rovio's cash cow from storming the box office.