Cwmaman is where the Stereophonics, including the recentlydeceased Stuart Cable, come from. They are mega-stars now and still live in the village!
As a huge Red Dwarf fan, i find that awesomeFensfield said:Shepperton - Shepperton Studios, home of the James bond films. And Red Dwarf.
Also the the aliens came down just down the road from here. (War of the Worlds, original book)