German actress Heike Makatsch attends the opening ceremony of the 66th Berlinale International Film Festival in Berlin, Germany, Feb. 11, 2016.(Xinhua/Zhang Fan)

Berlinale festival director Dieter Kosslick (R) and jury president Meryl Streep (L) attend the opening ceremony of the 66th Berlinale International Film Festival in Berlin, Germany, Feb. 11, 2016.(Xinhua/Zhang Fan)

Berlin's Mayor Michael Mueller attends the opening ceremony of the 66th Berlinale International Film Festival in Berlin, Germany, Feb. 11, 2016. (Xinhua/Zhang Fan)

U.S. actor George Clooney (R, center) and his wife Amal Clooney (L, center) attend the opening ceremony of the 66th Berlinale International Film Festival in Berlin, Germany, Feb. 11, 2016.(Xinhua/Zhang Fan)