Tony Curtis was an American film actor whose career spanned six decades, but had his greatest popularity during the 1950s and early 1960s. He acted in more than 100 films in roles covering a wide range of genres, from light comedy to serious drama. In his later years, Curtis made numerous television appearances. Although his early film roles were partly the result of his good looks, by the later half of the 1950s he became a notable and strong screen presence. He began proving himself to be a fine dramatic actor, having the range to act in numerous dramatic and comedy roles. In his earliest parts he acted in a string of mediocre films, including swashbucklers, westerns, light comedies, sports films, and a musical. However, by the time he starred in Houdini with his wife Janet Leigh, "his first clear success," notes critic David Thomson, his acting had progressed immensely. He won his first serious recognition as a skilled dramatic actor in Sweet Smell of Success with co-star Burt Lancaster. The following year he was nominated for an Oscar for Best Actor in another drama, The Defiant Ones. Curtis then gave what could arguably be called his best performance: three interrelated roles in the comedy Some Like It Hot. Thomson called it an "outrageous film," and a survey carried out by the American Film Institute voted it the funniest American film ever made. The film co-starred Jack Lemmon and Marilyn Monroe, and was directed by Billy Wilder. That was followed by Blake Edwards’s comedy Operation Petticoat with Cary Grant. They were both frantic comedies, and displayed his impeccable comic timing. He often collaborated with Edwards on later films. In 1960, Curtis co-starred in Spartacus, which became another major hit for him.