Sommer was spotted by film director Vittorio De Sica while on holiday in Italy, and she began appearing in films there in 1958. Also that year, she changed her surname from Schletz to Sommer. She soon became a sex symbol and moved to Hollywood in the early 1960s. Sommer became one of the more popular pin-up girls of the time, posing for pictorials in the September 1964 and December 1967 issues of Playboy magazine.
