Director Ridley Scott knows a thing or two about working with actor Russell Crowe.

"I think we're both pains in the neck. That's probably why we get on," Scott told Time magazine in an interview for editions on newsstands Monday.

"Really, what it is is Russell is very smart and therefore asks all sorts of intelligent questions, so if you're not ready you're going to get caught in the crossfire. So you'd better be ready," Scott said. "I'm used to him now. He's fundamentally a bit of a puppy dog."

Scott and Crowe have worked together on "Gladiator," are working on Scott's new film "A Good Year," and plan to work together on his next, "American Gangster."

When asked if he can tell when an audience will embrace one of his movies or not, such as "Kingdom of Heaven," Scott said: "You can never tell."

"It was a real passion project, and it's the film I'm most proud of," he said. "I think it was treated incredibly unfairly."