Continuity mistake: When Elton and John Reid are kissing in the cupboard John's hand keeps changing between shots. John's hand rolls down Elton's chest, then the next shot it's on Elton's cheek, the next shot he takes his hand away, then the next shot his hand is by Elton's mouth and Elton pretends to bite John's thumb.
Other mistake: During one of the recording studio scenes, there's a short segment that shows a bunch of VU (audio level) meters close up. The very first meter in that sequence is not a VU meter. Its from of an old HF (High Frequency) Amateur Radio transceiver; The scale is marked for RF, SWR, and ALC. I'm suspecting that someone involved with the post production editing is a Ham.
Other mistake: When Elton visits his father late in the film, his half brothers mention that there is a Rolls Royce outside. However, Elton enters a yellow cab when he is leaving the property, and then is shown in the Rolls Royce further down the road.
Continuity mistake: When Elton and Bernie sit in the cafe for the first time, the cup is on the right side of the table. In the next cut, it's on the left, and finally in the last cut, returns to the right side of the table.
Continuity mistake: In the underwater scene, there is something in Elton's left nostril; in the next shot, it is not there.
Factual error: When we see Elton John's father Stanley in RAF uniform at the beginning of the film he is wearing other ranks' uniform. Stanley was commissioned in 1944, three years before Elton was born, and served as a commissioned officer until his retirement as a squadron leader in 1963. He should be wearing officer's uniform.
Factual error: A 1976 Chevy Blazer is seen as the duo first enter the Troubadour in 1970.
Other mistake: After Elton get a off the phone with his mother in the phone booth, he gets into an argument with John Reid who hits him in the face on the left. In the next scene when Elton is putting on makeup before a show he is covering up the bruise on the right side of his face.