China's Transformers factory

Workers work on "Transformers" replicas on the outskirts of Shanghai, June 18, 2014.

Li Lei, owner of a small factory, uses his spare time and money to build "Transformers" replicas for rent or sale.

The new "Transformers" movie, which is premiering later this month, has brought the factory many new orders, according to Li.

Shanghai

Children play on a "Transformers" replica on the outskirts of Shanghai, June 18, 2014.

Workers work on "Transformers" replicas on the outskirts of Shanghai, June 18, 2014.

A worker works on a "Transformers" replica on the outskirts of Shanghai, June 18, 2014.

Worker work on "Transformers" replicas on the outskirts of Shanghai, June 18, 2014.

A "Transformers" replica is seen on the outskirts of Shanghai, June 18, 2014.

Workers work on "Transformers" replicas on the outskirts of Shanghai, June 18, 2014.

Workers assemble a 32-foot-tall homemade "Transformers" replica on the outskirts of Shanghai, June 30, 2014.