Minions pick up bananas on the Great Wall in Beijing, capital of China, Aug. 29, 2015. The three leading characters in the 3D animation movie "Minions" Stuart, Kevin and Bob got on the Great Wall to say hi to the Chinese audience on Saturday, which also opened their promotion travel in China. The movie will be released in China on Sept. 13. (Xinhua/Jin Liangkuai)

Character Kevin looks outside the Great Wall in Beijing, capital of China, Aug. 29, 2015. The three leading characters in the 3D animation movie "Minions" Stuart, Kevin and Bob got on the Great Wall to say hi to the Chinese audience on Saturday, which also opened their promotion travel in China. The movie will be released in China on Sept. 13. (Xinhua/Jin Liangkuai)

Minions walk on the Great Wall in Beijing, capital of China, Aug. 29, 2015. The three leading characters in the 3D animation movie "Minions" Stuart, Kevin and Bob got on the Great Wall to say hi to the Chinese audience on Saturday, which also opened their promotion travel in China. The movie will be released in China on Sept. 13. (Xinhua/Jin Liangkuai)

Character Kevin looks outside the Great Wall in Beijing, capital of China, Aug. 29, 2015. The three leading characters in the 3D animation movie "Minions" Stuart, Kevin and Bob got on the Great Wall to say hi to the Chinese audience on Saturday, which also opened their promotion travel in China. The movie will be released in China on Sept. 13. (Xinhua/Jin Liangkuai)

Character Kevin looks outside the Great Wall in Beijing, capital of China, Aug. 29, 2015. The three leading characters in the 3D animation movie "Minions" Stuart, Kevin and Bob got on the Great Wall to say hi to the Chinese audience on Saturday, which also opened their promotion travel in China. The movie will be released in China on Sept. 13. (Xinhua/Jin Liangkuai)

Minions look outside the Great Wall in Beijing, capital of China, Aug. 29, 2015. The three leading characters in the 3D animation movie "Minions" Stuart, Kevin and Bob got on the Great Wall to say hi to the Chinese audience on Saturday, which also opened their promotion travel in China. The movie will be released in China on Sept. 13. (Xinhua/Jin Liangkuai)

Minions walk on the Great Wall in Beijing, capital of China, Aug. 29, 2015. The three leading characters in the 3D animation movie "Minions" Stuart, Kevin and Bob got on the Great Wall to say hi to the Chinese audience on Saturday, which also opened their promotion travel in China. The movie will be released in China on Sept. 13. (Xinhua/Jin Liangkuai)

Minions walk on the Great Wall in Beijing, capital of China, Aug. 29, 2015. The three leading characters in the 3D animation movie "Minions" Stuart, Kevin and Bob got on the Great Wall to say hi to the Chinese audience on Saturday, which also opened their promotion travel in China. The movie will be released in China on Sept. 13. (Xinhua/Jin Liangkuai)