BBC One has unveiled its latest on-screen identity, based around the symbol of a circle. The promotional films showcase the channel's new logo.
The sequences will be shown between programmes on BBC One. In one, a bloat of hippos perform a synchronised swim.
Director Matthias Hoene filmed the award-winning Turbulence kite group on Ynyslas beach in Borth, Wales, for this dramatic clip.
At the end of the sequence, the kite flyers stand on sand dunes and wrestle their kites into a circle.
The short films aim to show people doing extraordinary things, such as a trio of bikers riding the wall of death.
Other sequences are more sedate. Here, a group of children play Ring a Roses at Coton Manor, Northants.
Filming also took place in Croatia, where a group of people in fishing boats carry segments of the moon to the horizon and piece it together.
The "Football Wizards" sequence shows 22 footballers passing 144 balls with mathematical precision, creating a seamless circle.
In "Window Panes" a group of residents in a London apartment block discover they can create a circle of light by catching the sunlight in their windows in this trail.
The films, which cost £1.2m, will replace BBC One's current dance-themed channel idents. They launch on Saturday, 7 October 2006.