They share two children and run a successful production company, making them a true Hollywood power couple.
They first met on the set of the film Gothika in 2003, where Susan was working as a producer.
Despite finding Robert "interesting but weird" initially, Susan eventually said yes to a date, leading to a long-lasting relationship.
They got engaged in November 2003, and their wedding took place in August 2005.
Susan played a crucial role in Robert's casting as Sherlock Holmes, facilitating the opportunity.
Robert credits Susan for helping him maintain his sobriety since 2003.
Their production company, Team Downey, was launched in 2010.