Robert Downey Jr.
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Hollywood actor Robert Downey Jr on why he needs Jude Law

Hollywood actor Robert Downey Jr talks about why he wanted to be involved in the Iron Man films and why he may come back for a fourth film.

The star spoke to Susanna Reid about how important the films have been to him and why he needs fellow actor Jude Law to join him on an upcoming project.

Go to next video: Downey Jr 'keeping it fresh' in Iron Man 3