Christopher Nolan has revealed that Leonardo DiCaprio is a demanding actor.
The director teamed up with the Oscar nominated actor for last year's summer sci-fi smash Inception but admits that he was demanding.
Speaking to NDTV Movies Nolan said: "He is extremely demanding, which actually helped me work out in Inception wherein there is emotional importance in the story."
"Leo is someone I had been trying to work with for years.
"I'd met him many times and nothing had come together, but I finally managed to convince him with this one and he brought an incredible amount of emotional focus to his character."
Inception went on to be one of the biggest grossing movies of 2010 as it took in excess of $825 million at the global box office, making it the fourth biggest movie of the year.
Next in the pipeline for Nolan is The Dark Knight Rises, which is the third, and what is believed to be his final, Batman movie.
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