A man filming his child playing at a park in Kassel, Germany, on June 26 got footage of an alleged UFO flying slowly in the sky, according to the International Business Times. While the word is still out on whether the video is a fake, former FBI special agent Ben Hansen spoke to The Huffington Post about why he isn't buying video. 

"The video incorporates the image of a classic triangle UFO, which witnesses often report as silently floating across the sky. The videographer got that part right. However, there are several major red flags that tell me this was a hoax. Although witnesses' reactions can vary greatly when seeing a shocking UFO event, this man appears extremely underwhelmed. I would expect a little more enthusiasm or effort to try and follow the craft when it emerges behind the trees. If he made efforts to follow it, I'd like to see that. We're led to believe that he puts down the camera and casually strolls away."

Hansen also pointed out sloppy editing mistakes made in the video after he examined it frame by frame. The one big giveaway for him is a point in the video where the UFO is supposed to be passing behind the playground, but is instead going in front. 

Can you catch the alleged mistake? 

Check out the video above and let us know what you think.