Home Alone viewers are only just realizing who plays the police officer at start of movie

Despite being over three decades old, some Home Alone fans are only just realizing who plays the police officer at the start of the movie.

The classic Christmas film is 34 - yep, 34-years-old. Feeling old right now?

Home Alone has withstood the test of time and is regarded by many as one of the best festive flicks out there, with some households even watching the film multiple times in the build-up to the big day.

That's how good it really is.

Nonetheless, fans are still spotting things regarding Home Alone to this very day - particularly involving the policeman at the start of the movie.

The copper can be seen at the very start of the movie - in fact right at the start - as we see him while the opening credits are still rolling.

The McCallister household is, of course, a pretty mad one as the family prepare to leave for Paris the next day, and the policeman can be seen on numerous occasions trying to get someone's attention.

However, he is repeatedly told the parents are not around to assist.

Home Alone has cemented it's place as a Christmas classic (20th Century Fox)

"All kids, no parents, probably a fancy orphanage," we hear him say. Eventually, the cop manages to catch the attention of Kevin's dad and warns him that there are 'a lot of burglaries around the holidays', so he wants to make sure the family is taking the proper precautions.

The dad confirms the family has automatic timers for the lights and locks on the doors, and his wife then spills the beans that the family will be leaving for their holiday the following morning - all of which is information that might just prove useful to someone planning to rob the house.

To be honest, the identity of the police officer isn't exactly hidden in the movie, but apparently a number of viewers didn't notice who he really was.

You see, the cop isn't just a cop, but also a robber - none other than one of our Wet Bandits, Harry.

The police officer at the start of the movie is actually Harry, one of the Wet Bandits (20th Century Studios)

If you're one of the people who thought that was obvious, then you're probably in disbelief about the fact that anyone missed it.

But they did, and they took to Twitter to admit it.

"Just found out the “cop” from home alone was THE ROBBER IN THE MOVIE i’m a f***ing idiot," one baffled person wrote, while a second wrote: "did u guys know the cop from home alone was also the robber."

Both the cop and the robber are brought to life by Joe Pesci, and once you realize that it becomes clear that Harry was even more surprised to find Kevin at home, knowing that his entire family had planned to go away for the holidays.