Kourtney Kardashian and Kim Kardashian's relationship has had some rocky bits over the years. But now, things are peachy keen with the siblings as Kourney sang Kim's praises.

The moment comes 38 seconds into the trailer. As a lavish party explodes around him, Leonardo DiCaprio’s perfectly coiffed, cocksure Jay Gatsby raises a glass of bubbly to toast his glorious self — ...