Se7en fans stunned after realising we did actually see what was ‘in the box’ in another movie

Fans of David Fincher's Se7en have been left stunned after releasing they've seen what was ‘in the box’ in another movie.

The critically-acclaimed American crime thriller follows retired police detective William Somerset (Morgan Freeman) who - on his last ever case - is forced to work with newly transferred David Mills (Brad Pitt).

The pair reluctantly clash heads on a number of gruesome murder cases and soon realise they are dealing with a cold-blooded killer.

Serial killer John Doe (Kevin Spacey) is targeting people who he thinks represent one of the seven deadly sins.

As the pair of detectives gain each other's respect, Somerset also befriends Mills' wife, Tracy (Gwyneth Paltrow).

She is pregnant and is afraid to raise her child in the city.

Now, if not you've seen the 1995 film, there's a big 29-year-old spoiler that I'm about to share.

In the final act, the killer lures the detectives to a secure location, bringing along with him a box containing Tracy’s severed head.

A prop of her head was created for Se7en, but we don't actually see it in the movie.

The highly rated film was one that took Brad Pitt's career to new heights. (New Line Cinema)

However, taking to TikTok, film expert Glittering Ghostwriter has revealed in a recent video that Paltrow's head prop was actually used in the 2011 movie Contagion.

The film follows healthcare professionals, government officials and everyday people who find themselves in the midst of a pandemic as the CDC works to find a cure.

The likes of Matt Damon, Kate Winslet, Jude Law and Paltrow, all star in the thriller.

"I mean, obviously in Se7en we technically know what is in the box. We just never physically see what's in the box," the TikToker explains.

"But that's not because the box was empty. The creators of Se7en actually did intend to show us Gwyneth Paltrow's severed head, but in the end, they decided it would build up more tension and mystery if we just never saw it.

We know what was in the box. (Warner Bros)

" And I have to agree with the creators on this, but like I also am, personally, curious to see the prop that they created.

"And if you are too you can, as long as you watch the movie Contagion. Because the prop from Se7en was actually used in Contagion.

"In the scene where Gwyneth Paltrow's character has an autopsy done on her, they have to like cut into her head.

"And since they already had a perfectly good unused prop of Gwyneth Paltrow's severed head they just use that for the scene in Contagion."

After making the realisation, users shared their thoughts in the comments.

One wrote: "That is one of the coolest fun facts ever!"

Another added: "Two of my favourite movies and I never knew that fact."

While a third commented: "Now THAT'S a fun fact."

So, there you go.