WARNING - SPOILERS FOR M. NIGHT SHYAMALAN'S SPLIT FOLLOW!
Split is now in theaters and has been revealed as a spinoff/semi-sequel to M. Night Shyamalan's Unbreakable. Secret sequels like Split are becoming a trend in Hollywood, with last year's Blair Witch sneaking up on fans, and a third Cloverfield sequel (or "spiritual sequel") expected later this year.
Hollywood is finding better and better ways to make and market secret sequels, whether making big reveals through trailers, social media campaigns - or now, even within the films themselves. As this trend hopefully continues to thrill moviegoers, we have 5 More Secret Sequel Movies We Want to See.