The 5-hour The LEGO Movie 2 ad: All you need to know

A new 5-hour ad for the upcoming The LEGO Movie 2 was shared recently and it’s got a lot of people wondering why. In fact, there’s a whole Reddit subthread about it and it seems that many are checking in, hoping there’s something hidden within that 5-hour loop. What is the 5-hour The LEGO Movie