Question: The career of How to Smuggle the Hernia Across the Border star Tony Curtis spanned how many decades? 

Context paragraphs:
David &amp; Fatima: David & Fatima is a 2008 drama film about a Palestinian woman and Israeli man from Jerusalem who fall in love.  The film is a retelling of William Shakespeare's "Romeo & Juliet", and was directed by Alain Zaloum, and stars Cameron Van Hoy, Danielle Pollack, Merik Tadros, Anthony Batarse, Ismail Kanater, Sasha Knopf, John Bryant Davila, Ben Kermode, Allan Kolman Tony Curtis and Martin Landau.  This was the last fictional movie Tony Curtis starred in.

Lepke (film): Lepke is a 1975 film starring Tony Curtis as the Jewish-American gangster Louis "Lepke" Buchalter.  It is often regarded by film critics as one of Tony Curtis's most underrated movies and one of his finest performances.

The Jill &amp; Tony Curtis Story: The Jill & Tony Curtis Story is a 2008 feature-length documentary directed by Ian Ayres, is about Tony Curtis and his wife and their efforts to rescue horses from slaughterhouses.  A camera crew follows Jill and Tony Curtis as they take in horses that would have been inhumanely killed and sent overseas as food for humans.  The DVD of the documentary includes bonus features including Tony Curtis an artist, how Tony met Jill and their love of horses.

Redbank Valley School District: Over the last many decades, Redbank Valley has been known throughout the surrounding counties as prestige institution of education.  The Redbank Valley High School (RVHS) athletics, education, and arts programs have been recognized throughout surrounding districts and communities.  RVHS's "Bulldog Marching Band" was, at one point, the No. 1 marching band in the state, competing and placing high in both the North American Marching Band Association and the Lakeshore Marching Band Association.  This is followed by the fine athletic programs, that have won numerous championships across the many sports programs provided.  This has spanned across not only District IX, but on the state level as well.  Education recently topped these all, as not even a decade ago, the school district had been educating many students that would receive highly regarded majors and doctorates.

The Bodyguard 2: The Bodyguard 2 (Thai: บอดี้การ์ดหน้าเหลี่ยม 2 ) is a 2007 Thai action-comedy film written, directed by and starring Petchtai Wongkamlao.  A prequel to his 2004 film, "The Bodyguard", "The Bodyguard 2" tells the origins of Petchtai's bodyguard character, and like the first film, it features a host of cameo appearances by Thai celebrities, including action star Tony Jaa.

Joyce Selznick: Joyce Selznick (February 12, 1925 – September 17, 1981) was a talent agent, manager, casting director, and screen writer for actors and musicians.  She was the niece of film producer David O. Selznick ("Gone with the Wind", 1939), providing her with early exposure to the industry.  Her career spanned three decades and began with her discovery by Tony Curtis in the late 1940s, climaxing with the casting of The Buddy Holly Story, released in 1978.  Selznick notably helped George C. Scott, Faye Dunaway, and Candice Bergen begin their careers and was perhaps best known for discovering a New York truck driver named Bernie Schwartz in the late 40's and developing him into a matinee idol who took the name, Tony Curtis.

Matador (U.S. TV series): Matador is an American television series co-created by Roberto Orci, Andrew Orci, Dan Dworkin, and Jay Beattie.  The series chronicled the rise of popular soccer star Tony "Matador" Bravo (Gabriel Luna), known for his exploits both on and off the field.  Unbeknownst to the public and his family, he is also a skilled covert operative performing missions for a branch of the CIA.  The series premiered on July 15, 2014, on the newly launched channel El Rey Network.

Ian Ayres (filmmaker): As a director his films include the feature-length documentary "The Jill & Tony Curtis Story" which was selected for screening at the Bel Air Film Festival, the Montreal World Film Festival, and the Mammoth Film Festival.  This 2008 documentary is about the efforts of Tony Curtis and his wife to rescue horses from slaughterhouses.  He is also the director of "Tony Curtis: Driven to Stardom" a documentary which traces the personal and professional history of the actor.

How to Smuggle a Hernia Across the Border: How to Smuggle the Hernia Across the Border is a short 1949 comedy film directed by Jerry Lewis and starring Jerry Lewis, Janet Leigh, and Tony Curtis.  The film was not released commercially.  The film is based on a funny story by Dean Martin's wartime personal problems with hernia.

Tony Curtis: Tony Curtis (born Bernard Schwartz; June 3, 1925September 29, 2010) was an American film actor whose career spanned six decades but who was mostly popular in 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.

Supporting paragraphs: How to Smuggle a Hernia Across the Border Tony Curtis
Answer: six decades