Russell Crowe
The actor from Gladiator, 2000, shot video footage outdoors from his office in Sydney, Australia. He and a friend were trying to videotape fruit bats that were hovering from the Botanical Garden and ended up capturing footage of an alleged UFO sighting, which he claims is real. Looks pretty credible!
Source
//www.youtube.com/watch?v=W63K–xUg6o