'Killers of the Flower Moon' clocks in at 3 hours and 26 minutes. Here are 21 other movies over 3 hours long.

"Killers of the Flower Moon."Courtesy of Apple

• Martin Scorsese's "Killers of the Flower Moon" is almost 3 1/2 hours long.
• The legendary director has multiple movies over three hours long, including "The Irishman."

This year, there have been multiple movies clocking in at three-plus hours long, from "Killers of the Flower Moon" to "Oppenheimer."

The reaction to these lengthy running times ranges from overjoyed to begging for an intermission. But this isn't an unprecedented move: There have been many movies throughout cinematic history that have clocked in at three hours or more, including some of the highest-grossing movies of all time, like "Avengers: Endgame" and "Avatar: The Way of Water."

If you ever have a spare afternoon, here are 22 films that will eat up a significant chunk of your day.