Jean-Baptiste gained international success from the Mike Leigh-directed social drama Secrets & Lies (1996), receiving both Golden Globe and Academy Award for Best Supporting Actress nominations for her performance, becoming the first black British Actress to be nominated for an Academy Award, and the second black Briton to be nominated, succeeding Jaye Davidson. She collaborated with Director Mike Leigh onstage in It's a Great Big Shame (1993). She caused some controversy when she accused the film industry of racism. She noted that leading actors had been asked to attend Cannes, but despite her success she was not invited.