Lauren Bacall's most famous scene was also one of her first. She made her debut in 1944's To Have and Have Not, when she famously taught Humphrey Bogart how to whistle, aged just 19.
According to the LA Times she was so nervous she had to tuck her chin towards her chest to stop shaking before the scene when she told his character: "You do know how to whistle, don’t you, Steve? You just put your lips together and blow."
A year after the film was released she and Bogart wed, staying together until he died of cancer in 1957. Bacall died yesterday age 89.