Question: In the biographical film Rainbow, which actress played the singer-actress Judy Garland?

Context paragraphs:
Me and My Shadows: A Family Memoir: Me and My Shadows: A Family Memoir is a 1998 memoir written by Lorna Luft, the daughter of singer-actress Judy Garland.

The Judy Garland Show: The Judy Garland Show was an American musical variety television series that aired on CBS on Sunday nights during the 1963-1964 television season.  Despite a sometimes stormy relationship with Judy Garland, CBS had found success with several television specials featuring the star.  Garland, who for years had been reluctant to commit to a weekly series, saw the show as her best chance to pull herself out of severe financial difficulties.

Connie Champagne: Connie Champagne, née Kelly Kay Brock, born November 23, 1959 is an American singer, song-writer and actor.  She won the "SF Weekly" Wammie Award for Outstanding Cabaret/Lounge Performer.  She is known for performing the character of actress, Judy Garland including "Christmas With the Crawfords" in 2001 and "Imagine Judy Garland: An Evening With Connie Champagne" in 2003.  She won a 2007 San Francisco Bay Area Theater Critics Circle Award (BACTC) for her role in "Goodbye Yellow Brick Road".  Specializing in numerous styles of music and theater including cabaret, swing, jazz, rock and roll, and musical theater, Champagne performed in numerous venues throughout the US and Europe.

List of Judy Garland biographies: Judy Garland has been the subject of many biographies.  Since her death in 1969, she has been the subject of over two dozen books.  The first of these was Brad Steiger's "Judy Garland", published shortly after her death, which includes information on Garland's astrological chart, analysis of her handwriting, numerology and biorhythms. Most of the books are entirely about Garland, but some, including Patricia Fox-Sheinwold's "Too Young to Die", "Some Are Born Great" by Adela Rogers St. Johns and Jane Ellen Wayne's "The Golden Girls of MGM", merely feature a chapter about her.  Two volumes, "Rainbow's End: The Judy Garland Show" by Coyne Steven Sanders and Mel Tormé's "The Other Side of the Rainbow: On the Dawn Patrol With Judy Garland", focus on Garland's television series, "The Judy Garland Show".  Garland's last husband, Mickey Deans, co-authored an early biography in 1972 and Garland's daughter Lorna Luft wrote a family memoir in 1988.

Rufus Does Judy at Carnegie Hall: Rufus Does Judy at Carnegie Hall is the sixth album (and first live album) by the Canadian-American singer-songwriter Rufus Wainwright, released through Geffen Records in December 2007.  The album consists of live recordings from his sold-out June 14–15, 2006, tribute concerts at Carnegie Hall to the legendary American actress and singer Judy Garland.  Backed by a 36-piece orchestra conducted by Stephen Oremus, Wainwright recreated Garland's April 23, 1961, concert, often considered "the greatest night in show business history".  Garland's 1961 double album, "Judy at Carnegie Hall", a comeback performance with more than 25 American pop and jazz standards, was highly successful, initially spending 95 weeks on the "Billboard" charts and garnering five Grammy Awards (including Album of the Year, Best Album Cover, Best Solo Vocal Performance – Female and Best Engineering Contribution – Popular Recording).

Life with Judy Garland: Me and My Shadows: Life with Judy Garland: Me and My Shadows is a 2001 American two-part, four-hour biographical television miniseries based on the 1998 book "" written by Lorna Luft, the daughter of legendary singer-actress Judy Garland.  The miniseries was directed by Robert Allan Ackerman and originally broadcast in two parts on ABC on February 25 and 26, 2001.

List of recordings by Judy Garland: This article is a list of recordings made by Judy Garland.  Throughout her career Garland recorded numerous soundtracks for her films, as well as studio recordings for Decca, Columbia and Capitol Records.  In addition to these soundtrack and studio recordings, Garland would also perform numerous songs on her 1963—1964 CBS television series, "The Judy Garland Show", with an array of famous guest performers.  Garland also performed countless times on the radio and gave hundreds of concerts throughout her career, many of these performances were recorded and have survived in audio format.

Get Happy: The Life of Judy Garland: Get Happy: The Life of Judy Garland is a biography of entertainer Judy Garland.  Published in 2000, "Get Happy" is author Gerald Clarke's follow-up to his 1988 biography of Truman Capote.  Clarke conducted some 500 interviews, including some with subjects who had not previously spoken about Garland, and also drew upon tape recordings that Garland had made in the 1960s for an autobiography.  He found Garland's unpublished 68-page manuscript in the Random House archives.  Clarke spent ten years on the book, and only made his final decision to write about Garland after reading the extant biographies.  "I did not want to write a book about her if the definitive book had already been written...So, I sat down and I read the biographies that had already been written and came up with no real impression of Judy...There was a disconnect between the woman who emerged from the pages and the woman I saw in the movies and heard on the records...I knew that "the" book had not yet been written."

Andrea McArdle: Andrea McArdle (born November 5, 1963) is an American singer and actress best known for originating the role of Annie in the Broadway musical "Annie".

Rainbow (1978 film): Rainbow is a 1978 American made-for-television biographical film directed by Jackie Cooper which chronicles the early years of singer-actress Judy Garland, portrayed by Andrea McArdle.  The film was written by John McGreevey based on the 1975 book "Rainbow: The Stormy Life of Judy Garland" by Christopher Finch and originally aired on "NBC Monday Night at the Movies" on November 6, 1978.

Supporting paragraphs: Rainbow (1978 film) Andrea McArdle
Answer: Andrea McArdle