Plot hole: In this episode all the students say Hollywood Arts has never had a prom before. But in the first episode, 'Pilot', Rex says to Cat after she runs out to tell Tori, Robbie, Andre and him that Sikowitz wants them to come back into the classroom, "Just like you wanted a date to the prom last year."
Continuity mistake: When Tori practices for her theater tech exam with Robbie you can see a digital timer counting down, but the count down time suddenly jumps a few seconds back in some shots. Plus Robbie states that Tori's time on her test was twenty-eight seconds, however, in reality, it was forty-eight.
Other mistake: When the gang is trying to find the letters to spell Ke$ha at Tori's house, Robbie decides to go give the extra ice cream to the kids at the park. When he comes back he says that there were kids there with their moms, despite the fact that it is late at night, as we can see out of the window.