The Gumm Sisters continued to perform successfully. They made their movie debut in 1929. In 1934 they changed their name to The Garland Sisters. Judy was signed by MGM in 1935 and made many movies including the Andy Hardy series with Mickey Rooney and "The Wizard of Oz". Judy was given amphetamines and barbiturates to keep up with the hectic pace of moviemaking. She became addicted to drugs.