When the Yankovic family is sitting eating dinner, the sandwich on Nick Yankovic's (Toby Huss) plate changes several times. It appears toasted, untoasted, or with different fillings between shots. Additionally, the yellow pot appears to change position slightly.
The closeup hand playing the accordion at the polka party is a lot hairier than the hand of David Bloom, the actor playing Teenage Al.
During his drunken concert rant, Al puts the microphone back into the mic stand in one shot, but when the camera angle changes, he is once again holding it in his hand.
Tiny Tim is shown playing the ukulele right-handed. In reality, he was left-handed and played the uke as such.
A scene set in the 1980s refers to "Miami-Dade County" in FL; however, this county was named just plain "Dade County" up until 1997.
It is wrong to shock a patient who is in asystole ('flat line').
Charles Nelson Reilly's shrine note in the end credits leaves the last period off "R.I.P." and the apostrophe out of "didn't"; it also omits the customary quotation marks around "Weird Al" (saying just Weird Al Yankovic).
At the end of the accordion salesman scene, Mary pronounces "amenable" with a short "e", and on the commentary, the real Al proudly takes credit for "teaching" her how to say it; however, the preferred pronunciation uses a long "e".
The numerous anachronisms and other biographical inaccuracies throughout the film are all part of the joke.
The urine stain during the awards ceremony was more on his right thigh, but the picture during the credits has it centered on his crotch.
However, the pictures during the credits are of the real Weird Al , so any discrepancy between the credit photos and events of the movie would be factual rather than continuity errors.
However, the pictures during the credits are of the real Weird Al , so any discrepancy between the credit photos and events of the movie would be factual rather than continuity errors.
The car Al is driving while drunk clearly has the gear shift in Park no key in the ignition.
The emergency doctor says "quick" very slightly before Weird Al as a cue to Daniel Radcliffe: he seems to think Radcliffe forgot his line.
The "My Bologna" record is skipping at the radio station but takes 3.3 seconds to repeat each time. An LP would skip after 1.8 seconds, a 45 after 1.33. (Al mentions in the commentary that he brought up this objection himself, but was told to let it go.)
Some crowd footage shown during the Oprah interview is apparently real video, stretched to be about 30% too wide and cropped back down to the 1.33 aspect ratio. It was also not deinterlaced at all, looking jarringly unprofessional next to the new footage.
Diana Ross makes the common mistake of pronouncing Louis Armstrong with a silent S (Louie); Louis pronounced the S.
The emergency team doesn't perform chest compressions.
Oprah uses the phrase "begs the question" to mean "prompts" or "leads to the question". Begging the question is a logical fallacy.