Blooper

When Loretta and Doolittle are leaving the Ryman Auditorium after appearing on the Grand Ole Opry, they walk past the security cameras that weren't placed on the building until years later.

When at Patsy's house talking about maternity clothes, bright sunshine can be seen coming directly in the windows on three different sides of the room.

When Doolittle is taking Loretta's photo to send to radio stations, her dress isn't completely on her, yet the photo being sent to the radio stations shows her dress completely on her.

At the end, when Loretta comes on stage to sing "Coal Miner's Daughter", Loretta walks on stage in a white dress with a blue sash around her waist, and she's handed the microphone by a man in peach bell bottom pants, a shot that was used earlier in the movie. In the next full-body shot of her, the sash on the dress is now red, and all the men are wearing brown vests and yellow shirts.

When Loretta is first seen riding her mule to the mine to meet her father, her hair is straight. When the camera cuts to the mine then back to Loretta, her hair is curled.

Loretta tells Patsy Cline that she's pregnant. A few days later Patsy is killed in a plane crash. Patsy Cline died in March 1963, and Loretta's twins were born in August 1964 - a span of 17 months.

Prior to her first appearance at the Grand Ole Opry, Loretta is listening to Patsy Cline singing "Crazy", then after her debut she is summoned to Patsy's hospital room where she is told Patsy was injured in a automobile accident. In reality, Patsy recorded "Crazy" a few weeks *after* her accident. In an NPR interview in 2000 one of the studio musicians present that day remarked that Patsy had difficulty hitting the high notes in "Crazy" because she was still sore from her accident.

Loretta Lynn is being introduced in a scene as having 21 Number 1 records. Yet, Lynn only had 16 No. 1 records, according to her biography.

When Loretta Lynn is talking to the DJ at WCBL, she says Doolittle "used to sell moonshine back in Kentucky." WCBL actually is in Kentucky -- in Benton, Kentucky.

Loretta tells Patsy she's pregnant again and doesn't want to have it. She also mentions she's been having babies since she was 14. Loretta didn't have her first child until she was 16.

Loretta's father is shown in an open casket at his funeral. Looking closely, he can be seen breathing.

When Doolittle scrambles to his car to listen to WCBL, he turns on the radio, and the radio station's audio is instantly heard. In reality, old vacuum-tube radios would take many seconds to warm up before any sound was produced.

The child actors playing Loretta's children can be seen looking at the camera.

The doctor Loretta visits comments that he hasn't seen her since he vaccinated the kids in the family for the measles. The first measles vaccine wasn't licensed for use until 1963, long after the time of her visit to the doctor.

When Loretta and Mooney are driving through town, it is supposed to be 1948. When they round the corner, a 1979 Dodge Omni is parked on the street, facing the opposite direction.

When Loretta and Doo go to the Honkytonk for Loretta's first perfomance, many of the extras in the audience are wearing modern clothing/hairstyles which men and women didn't wear at the time.

When Loretta and Mooney stop to buy baloney, a candy display next to the cash register contains late-1970s candy packages.

At the start of the movie one of the coal miners uses the phrase "in a new york minute". That phase wasn't used till at least 1954.

When Loretta learns of Patsy Cline's death, when she's hugging Mooney and says her line "Who am I going to talk to now?", her lips don't move.

When Loretta is singing "There He Goes" with The Westerners, not only are the bass player's hands not moving, but he is portrayed playing an upright, or "double", bass. The sound being made, however, is clearly from a bass guitar, not an upright bass.

When Loretta makes her first stage appearance, the bass player is using a double bass, but an electric bass is heard instead.

When "Doo" is taking Loretta's picture in their home he is using a pot lid to reflect light from a floor lamp. On several occasions both the camera and crew are visible in the reflection of the pot lid.

Final credits clearly state: "Filmed entirely on location in Kentucky and Tennessee." The IMDb locations page adds Virginia, but not Washington state where several outdoor scenes were set. "Entirely" is an overstatement here.

The boom mic is visible when teenaged Loretta is talking to her mother in the living room.

When Loretta Lynn wakes up to hear Patsy Cline was killed in a plane crash, the DJ announced after "Sweet Dreams" was playing that she was killed near Dyersburg, Tennessee. This is false as her plane crashed near Camden, Tennessee.

When Mooney takes the picture, he does not pull the dark slide on the film holder in the camera, so the film was not exposed.