An eagle-eyed fan noticed an 11-year-old lead suddenly being replaced by an adult man in 'Freaky Friday'

• A TikToker pointed out that a young lead in "Freaky Friday" had a visible adult stunt double.
• Harry Coleman is replaced by a much older double in one of the final scenes of the Disney film.
• This isn't the first time fans have noticed something like this and shared it online.

Disney+ has made it possible for fans to rewatch nostalgic movies like "Freaky Friday" (2003) and point out some previously unspotted continuity errors.

In a recent TikTok that currently has over 2 million views, an eagle-eyed fan caught a blink-and-you'll-miss-it moment where a young Harry Coleman is momentarily replaced by an adult stunt double.

During one of the final scenes, the 11-year-old actor is clearly replaced by someone much older

While rewatching the end of "Freaky Friday," TikTok user @thegabbienicole noticed a clear shot of the film's youngest lead being replaced by an adult stunt double.

Her clip quickly racked up over 357,000 likes and more than 2,200 comments from equally confused and delighted fans, many of whom had seen the film plenty of times and never noticed the split-second switch-up.

In the scene, Harry - played by Ryan Malgarini, who was 11 when the film premiered - can be seen exchanging fortune cookies with his grandfather (Harold Gould).

In an attempt to prevent the same body-switch mishap that Jamie Lee Curtis and Lindsay Lohan's characters had just gotten themselves out of, the owner of the Chinese restaurant, Pei-Pei (Rosalind Chao), runs and knocks the characters down to grab the cookies.

Right before Chao knocks into the actors, it's clear that Harry is no longer being played by Malgarini. Instead, a much older stunt double has taken his place - likely to ensure the young actor wouldn't be injured in the high-impact scene.

Other fans have noticed somewhat similar instances on 'Friends' and in 'Harry Potter'

This isn't the first time TikTok users have pointed out hard-to-notice errors in beloved franchises.

"Friends" fans have been quick to point out multiple stand-in actor mistakes that are more obvious now that the series has been remastered to a wider format for streaming services.

Stand-ins typically help to set up the camera and lighting before shots or take actors' places when they don't necessarily need to be fully on-screen. One of the most obvious ones was when Ross' dad was replaced by a random actor for a brief moment on a season-eight episode.

A "Harry Potter" fan on TikTok also noticed a scene in "Prisoner of Azkaban" where the leads were replaced by random body doubles.

Like stand-ins and stunt doubles, body doubles take the place of lead actors in films.

But in this case, they likely stepped in because of the Screen Actors Guild's union rules, which require lead actors to have 12 hours of "turnaround time" between shooting days. If one day runs late, a body double can step in so the star can wrap at the right time.