Question: Which actress from The Andy Griffith Show was also part of the 1949 film Father Was a Fullback?

Context paragraphs:
Betty Lynn: Elizabeth Ann Theresa "Betty" Lynn (born August 29, 1926) is a former American actress.  She is best known for her role as Thelma Lou, Deputy Barney Fife's girlfriend, on "The Andy Griffith Show".

The Andy Griffith Show: The Andy Griffith Show is an American situation comedy which aired on CBS from October 3, 1960, to September 6, 1971, with a total of 327 half-hour episodes spanning over 11 seasons, first in black and white and then in color, which partially originated from an episode of "The Danny Thomas Show".  It originally starred Andy Griffith in the role of Andy Taylor, the widowed sheriff of the fictional small community of Mayberry, North Carolina.  Other major characters include Andy's inept but well-meaning deputy, who is also his cousin, Barney Fife (Don Knotts); Andy's spinster aunt and housekeeper, "Aunt" Bee Taylor (Frances Bavier), and Andy's precocious young son, Opie (Ron Howard).  Eccentric townspeople and temperamental girlfriends complete the cast.  Regarding the tone of the show, Griffith said that despite a contemporary setting, the show evoked nostalgia, stating in a "Today Show" interview: "Well, though we never said it, and though it was shot in the '60s, it had a feeling of the '30s.  It was, when we were doing it, of a time gone by."

The Christmas Story (The Andy Griffith Show): "The Christmas Story" is an episode from the American television program "The Andy Griffith Show" broadcast Monday December 19, 1960 on CBS.  A family spends Christmas Eve in jail.  "Christmas Story" is the eleventh episode in season one, and the eleventh episode in the complete series.  The show is noted for being the only Christmas episode in "The Andy Griffith Show" complete series, and for featuring actress Margaret Kerry, the model for Tinkerbell in Walt Disney's 1953 animated feature film, "Peter Pan".  On December 25th, 2015, CBS aired this episode in color, as part of "The Andy Griffith Show Christmas Special", which also included "The Pickle Story".

Father Was a Fullback: Father Was a Fullback is a 1949 film black-and-white of Twentieth Century Fox based on a comedy by Clifford Goldsmith.  The film is about a college American football star and his woes.  The film stars Fred MacMurray, Maureen O'Hara, Natalie Wood, and Betty Lynn.

Floyd Lawson: Floyd Lawson (Floyd the Barber) is a fictional character on the American sitcom "The Andy Griffith Show", who was likely inspired by barbers in Andy Griffith's real-life hometown of Mount Airy, North Carolina.  One barber named Russell Hiatt was known as "the real-life Floyd".  Hiatt may have cut Andy Griffith's hair while Griffith was young and living in Mount Airy, and was still cutting hair daily at "Floyd's City Barber Shop" in Downtown Mount Airy until several years before his death on May 3, 2016.  Griffith denied that Hiatt was the inspiration for Floyd Lawson, however, saying, "A barber up there says he cut my hair when I was a child.  Hell, he’ll have to be 115 years old."

Andy Taylor (The Andy Griffith Show): Sheriff Andrew "Andy" Jackson Taylor and in earlier episodes as Cousin Andy by Barney Fife is the major character on "The Andy Griffith Show", an American sitcom which aired on CBS, (1960–1968).  He also appears in the "Gomer Pyle, U.S.M.C." episode "Opie Joins the Marines", made a cameo appearance in the USMC episode "Gomer Goes Home," five episodes of "Mayberry R.F.D." (1968–1971) and the reunion telemovie "Return to Mayberry" (1986).  The character made his initial appearance in an episode of "The Danny Thomas Show" entitled "Danny Meets Andy Griffith."  In the CBS special "The Andy Griffith - Don Knotts - Jim Nabors Show" (1965), Andy and Barney are featured in a musical sketch about their friendship and recreate some classic moments between the characters.  Andy Griffith, as Sheriff Taylor, also has a brief comedy cameo in "Rowan and Martin at the Movies" (1969), a PSA short subject promoting the purchase of U.S. Savings Bonds.  Andy Taylor appeared in all 249 episodes of "The Andy Griffith Show" and was played by comedian and actor Andy Griffith.

The Strangers in 7A: The Strangers in 7A is a television movie drama/thriller starring Andy Griffith, Ida Lupino, and Michael Brandon that aired on CBS in November 1972.  It was based on the 1971 novel of the same name by Fielden Farrington.  The film was the first real dramatic role for Griffith following his eight-year run on "The Andy Griffith Show", and his two unsuccessful series follow-ups ("Headmaster", and "The New Andy Griffith Show").  The film would lead Griffith to star in a series of TV-movies throughout the entire 1970s and most of the 1980s before he re-emerged with another successful series ("Matlock").

Emmett Forrest: William Emmett Forrest, Jr. (September 3, 1927 – January 12, 2013) was an American pop culture collector, museum founder, and longtime friend of actor Andy Griffith.  Forrest was an extensive collector of memorabilia spanning Griffith's career.  He persuaded Andy Griffith to donate set pieces and other items from the "Andy Griffith Show".  Forrest used his collection to found the Andy Griffith Museum in Mount Airy, North Carolina, which opened to the public on September 26, 2009.

Barney Fife: Bernard "Barney" P. Milton Oliver Fife is a fictional character in the American television program "The Andy Griffith Show", portrayed by comic actor Don Knotts.  Barney Fife is a deputy sheriff in the slow paced, sleepy southern community of Mayberry, North Carolina.  He appeared in the first five seasons (1960–65) as a main character, and, after leaving the show at the end of season five, made a few guest appearances in the following three color seasons (1965–68).  He also appeared in the first episode of the spin-off series "Mayberry R.F.D." (1968–1971), and in the 1986 reunion telemovie "Return to Mayberry".  Additionally, Barney appeared in the "Joey Bishop Show" episode, "Joey's Hideaway Cabin" and the first episode of "The New Andy Griffith Show".

Aunt Bee: Aunt Bee is a fictional character from the 1960 American television sitcom "The Andy Griffith Show".  Played by Frances Bavier, the character migrated to the spinoff "Mayberry R.F.D." (1968–1971) when "The Andy Griffith Show"ended its run in 1968, and remained for two years.  Though she was the aunt of Sheriff Andy Taylor, virtually every character in Mayberry called her "Aunt Bee".

Supporting paragraphs: Father Was a Fullback Betty Lynn
Answer: Betty Lynn