Goofs

On the private jet, Ally's T-shirt alternates between knotted and not knotted several times.

Jack and Ally are walking toward each other in a gas station parking lot during the trip to Arizona. Ally is wearing a blouse when the shot starts, but when they meet and embrace, she's wearing a leather jacket.

When Bobby takes Jack home from the rehab, they arrive to the house, Jack tells him he idolized him, then shuts the door and walks away - Bobby immediately backs up the car and leaves. Moments later, when Jack enters the house, he is carrying a suitcase and his guitar, none of which has he taken out of the truck.

When Ally's dad's friends are watching her & Jack sing Shallow on YouTube, the footage is not the same as what we saw at the concert. Her hand gestures while singing the chorus are slightly different.

When Jack and Ally arrive in their hotel room, Jack drops his key card on the floor as he stumbles into the hallway table. He turns and moves into the next room as Ally goes into the bathroom and shuts the door. When she opens the door, the key card is gone.

The first time they sing Shallow together on stage, they both sing the part "in the Sha, Sha-la-la-la-low" in perfect synchronization. However, Ally did not sing that part the night before as she was coming up with the song, and thus, they shouldn't had been able to sync up on that part without a previous rehearsal.

When we are looking into the control room at Saturday Night Live (1975), we are seeing monitors which presumably show us what is being broadcast. When the musical guest is appearing on SNL, however, a photo of the musical guest is shown coming out of commercial before going to the live broadcast.

When Jack and Bobby are driving to Jack's house the car is obviously getting pulled along on a trailer as all the dashboard dials (including the speedometer) are on zero.

Just after Ally says "I don't know where my mom is" at the breakfast table when Jack is about to propose, the big brother looks at his younger sibling Leo to hint her that it's the right time to say "I think you're pretty" (1:13'53").

When Ally performs at the I Heart Radio showcase, this is the first time she's performed this song in front of an audience. But when she reaches the chorus for the first time, two women in the front row to Ally's left are singing along, most noticeably a woman in a red halter top.

During the serious chat between Jackson and Ally's manager Rafi, we can see Rafi looking at his phone. However, when we get a glimpse of the screen it's totally blank.

When Ally and Jack are checking out at the grocery store, the cashiers's register is actually locked. She would have needed to login, for her to have checked them out.

At one point Ally and Bobby are looking at posters from Jackson's past concerts and see one from when he played the 2010 Washington State Fair.

At that time, the fair was called the Puyallup Fair and did not take on its Washington State Fair name until 2013.

Halfway through "Always Remember Us This Way", a view of Ally at the piano from the side (the audience's perspective), on the big screen at the back of the stage it shows her singing vocals while for several seconds she is not.

Bobby tells Ally that Jack just kept saying, "I love how she sees 'em, Bobby." But Bobby quit before Ally's first concert touring with Jack, and at their reunion at Saturday Night Live (1975) it appears they did not keep in touch. By the time they were reunited, Jack was describing her musical choices as "embarrassing."

In the crowd shot during "Shallow," you can see that no one in the front row has their phone up recording the performance that would show up on YouTube.

In the recording studio, Ally says she's never sung with a track before. But that is exactly what she's doing in the nightclub when Jack meets her.

After Ally curses In the bathroom following her call with Roger (3:40), she peeks sideways at the camera in the mirror.

When Jackson is about to see Ally perform in the drag bar, he asks if she's really singing or is it 'one of them karaoke things' , but in karaoke the person is actually singing - even if it's bad! He probably meant to say 'one of them lip syncing things'.