10 FEBRUARY 2009

One is a Nobel prize winner and elder statesman, while the other is among Hollywood's most sought after stars. Yet as unusual as it might seem for Leonardo DiCaprio and Mikhail Gorbachev to be rubbing shoulders at a glamorous gala in Berlin, the duo do share similar concerns.

Since leaving office the former Russian premier has tackled global social problems through his eponymous foundation. In this capacity he presented Leo, a passionate environmentalist, with the International Green Film Award for producing The 11th Hour, a documentary about global warming.

Watching the ceremony was a star-studded audience including Catherine Deneuve and Bob Geldof.

Elsewhere in the German capital, which is hosting the city's annual film extravaganza, Harry Potter star Rupert Grint was promoting his second venture away from the wizard franchise.

The 20-year-old and his young co-stars were greeted by cheers at the premiere of Cherrybomb, a film about a group of friends whose wild weekend goes wrong.

Keanu Reeves, attending the screening of his latest flick The Private Lives Of Pippa Lee, rounded off the movie elite in Germany.

Photo: Rex
The Russian elder statesman was at the Berlin film festival to present the eco-conscious star with an award for his work on on The 11th Hour, a documentary about global warming
Photo: Getty Images
Harry Potter actor Rupert Grint was in also in town to promote his new film Cherrybomb along with co-stars Robert Sheehan and Kimberley Nixon