Factual error: The movie is set in New York. When Tony Smerko goes up on the roof of the studio to chop down the antenna, there's a green Art Deco building with a clock tower in the background - the Eastern Building, a downtown Los Angeles landmark since the 1930s.
Factual error: When Buddy and the musicians tour bus is towed to the Clear Lake Auditorium for the final concert before the fatal air crash, the canopy states that the concert is on the 3rd of February. The fatal accident that took Buddy, The Big Bopper and Ritchie Valens occurred at 1am on 3rd February 1959 so the canopy should have read 2nd February.
Factual error: In the sixties retro scenes vehicles can be seen that didn't start production until the seventies.