How Long Is Too Long For A Movie?

I love going to movies but if they go on for too long they tend to lose me, unless it’s a cliffhanger and the action is off the charts.  Oppenheimer and Flowers Of The Killer Moon were both over three hours and had me checking my watch regularly and new research shows that’s just too long for most moviegoers.  So where’s the sweet spot when it comes to movies?  The new research shows 92 minutes is the perfect movie length.