Dolly Parton embarked on her film career after years of declining offers, waiting for the right project. She seized the opportunity with the 1980 film "9 to 5," starring alongside established actresses Jane Fonda and Lily Tomlin. Parton strategically viewed this as an ideal entry into cinema, believing that if the film succeeded, she would share the glory, and if it failed, she could attribute it to her co-stars. Her portrayal of Doralee Rhodes, a secretary seeking revenge on her misogynistic boss, earned her critical acclaim and a Golden Globe nomination for Best Actress. The film was a commercial success, grossing over $103 million and becoming the second-highest-grossing film of 1980, second only to "Star Wars: Episode V — The Empire Strikes Back." Parton also penned the iconic title song, which topped charts and earned her an Academy Award nomination.

Following her debut, Parton took on a more challenging role in the 1982 adaptation of the Broadway musical "The Best Little Whorehouse in Texas," playing brothel madam Mona Stangley opposite Burt Reynolds. While opinions were mixed and some critics noted a lack of chemistry, the film performed well at the box office, becoming the tenth-highest-grossing film of the year with over $69.7 million domestically. This role also earned her a second Golden Globe nomination. Despite the film's production difficulties and a muddled aesthetic, Parton's version of "Hard Candy Christmas" became a country top 10 hit.

Parton continued to expand her acting range with her first dramatic role in the 1989 ensemble film "Steel Magnolias." She played Truvy Jones, a beautician who served as the emotional anchor for a group of women in a small Southern town. Parton connected deeply with the character, noting that she would have become a beautician if not a musician. Her nuanced performance, alongside an impressive cast including Shirley MacLaine and Julia Roberts, further demonstrated her acting abilities. "Steel Magnolias" grossed $41.8 million at the box office and significantly more through video sales, becoming the 29th-highest-grossing film of the year. Parton's filmography highlights her ability to choose roles that align with her persona, allowing her to deliver natural and believable performances.