How Justice League's Flash Speed Shots Were Created

The Flash in Justice League

Justice League's Ben Affleck and Ray Fisher broke down their scenes with the Flash and the way they filmed the speedster's faster moments. Barry Allen (Ezra Miller) becomes a regular in D.C.'s cinematic universe after getting brief screen time in Batman v. Superman: Dawn of Justice, and Zack Snyder's version of the Flash (with a lot of help from Joss Whedon) promises to heavily incorporate his unmatched super-speed with some clever effects.

The Flash required lots of visual trickery on the part of Snyder, the actors, and the effects and editing teams to bring the hero to life in Justice League. The end result looks promising based on Allen's appearance in recent previews, particularly in a scene where he bursts into the speed force to snatch Bruce Wayne's Batarang out of the air. In a new interview, Affleck shed some light on the multiple methods that went into creating the moment with Wayne and Allen on screen.

Related: Justice League Explores The Flash’s History With New Video

Ezra Miller as The Flash in Justice League

Check out his explanation in the video above, via Fox 5 DC. For the scene in question with the Batarang, Affleck was simply shot moving at normal speed with a higher frame rate, then the footage is played at the typical 24 frames per second, giving a slow-motion effect, while Miller shot his part at a normal rate. The two shots were then layered on top of each other, creating an eye-popping way for Barry Allen to prove his abilities worthy of the team. Here's how Affleck described the process:

"Sometimes they shoot them with high speed cameras, so that the action actually slows down. We brought in, for that day, special cameras that shot at a high frame rate. I just threw at full speed, and it could slow way down, and then they shoot Ezra at a slightly different frame rate, so that it looks a little bit slow but also that he's moving a little bit faster than I am."

Fisher also spends plenty of time as Cyborg with the Flash in the speed force, but in his case, he shot scenes in which he had to stand perfectly still while Miller moved around normally. He explained that the crew "figured out the physics" of those moments to make the effects look as smooth and believable as possible.

The techniques used to show the Flash's speed are simple when broken down into steps, but quite complex when fitting all the pieces together to create cohesive images. This is especially true for layering multiple shots onto each other and forcing actors to stand motionless at times. It appears that fans of Snyder's past work and effects styles have plenty to be excited about with the character, who may be a fan favorite already.

Miller made an eating analogy to describe how the effects were created, sounding somewhat reluctant to reveal any details about what eventually showed up in the clip seen in the trailer. He also said the way that Justice League depicts the Flash's abilities is through "his perception," so expect more scenes with similar effects to what you've already seen.

MORE: Rumor: Flashpoint Will Depend on Justice League Reception

Source: Fox 5 DC

Key Release Dates
  • Aquaman (2018) release date: Dec 21, 2018
  • Cyborg (2020) release date: Apr 03, 2020
  • Justice League (2017) release date: Nov 17, 2017
  • Wonder Woman 1984 (2020) release date: Jun 05, 2020
  • Green Lantern Corps. (2020) release date: Jul 24, 2020
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