Actor Arnold Schwarzenegger surprised his fans when he revealed that his film `Twins` was his most profitable film of his career, despite being known for his superhit franchise `Terminator`, reported Variety.

During an interview on the `Watch What Happens Live` talk show, as quoted by Variety, Arnold said that `Twins` delivered him 40 million USD. It was a comedy-drama that starred Arnold and Danny DeVito in the lead roles, marking their first collaboration on the big screen. The movie was released in 1988.

"Well, number one was `Twins` because we got no money for the salary, but ownership with a piece of the back end. It was fantastic. We went all the way to the bank with that," said Arnold as quoted by Variety.