Believe in UFOs? Well, think about it, if there were such things, wouldnt there be at least some real footage of it somewhere. And, it would likely just get lost amongst the thousands of other apparent sightings of UFOs.

Some people go out their way to create things which look like UFOs, making something hover over a small town just to get a reaction. Other videos could easily be just some birds, helicopters, planes or quite often a hot air balloon; and the video's spoofs of 'real aliens' are pretty hilarious.

Update: See London UFOs . 24 June 2011

So, here's 10 clips I've come across which do make you think, WTF - Is it real?