7 Clever Ways Movies Hid Their Stunt Doubles

Another way CGI can be used to hide stunt doubles is by applying small tweaks to the appearance of the doubles themselves.

Even with impeccable planning, it may still be glaringly obvious that that the double is in the shot - their body shape or hair might give them away, or, as was the case with Jurassic Park, their face might pass in front of the camera for a few brief frames, enough time to pull the viewer right out of the scene.

During the sequence where the main characters crawl through a vent inside the main complex, Lex is momentarily knocked out of said vent when a raptor head-bashes one of the ceiling panels, causing her to fall.

This small stunt was performed by the stunt double of Ariana Richards, the actress who played Lex. Unfortunately, the double accidentally looked straight into the camera before climbing back into the vent, and since she didn't look like Richards, something needed to be done. So, the VFX team digitally replaced the double's face with Richards' face, and the result is simply unnoticeable - unless you already know it's there.

This technique has also been used on other high-profile movies, too: Scarlett Johansson had three stunt doubles for Avengers: Age of Ultron, and each of them wore face dots to make post-production face swaps easier.

Even more impressively, Hugh Jackman actually had his entire head re-created via CGI, which was then grafted onto his stunt double's body for several close-up shots in Logan - most notably, during the early car chase in the desert.