Continuity mistake: When Miley is about to tell Oliver that she's Hannah Montana, her lips are really black. When it cuts back to her after Oliver asks "Why?", her lips aren't black at all.
Continuity mistake: When Miley is with Oliver on the beach, there is a black dot on her cheek, but after Oliver says "I still love you", we cut back to Miley and the black dot has gone.
Continuity mistake: When Oliver appears and is hanging from the limo roof, Lilly puts "Hannah's" hat on Miley's head and Miley's father has her wig. In the next shot she only has her wig on, but after Oliver asks why she kissed him, we cut back to Miley and she has both her wig and hat on.
Continuity mistake: When Oliver appears and starts to drop into the limo, Robbie pulls Hannah's wig and puts it under his right thigh, but in the next shot we see Lilly helping Hannah put on her wig from the opposite side.
Continuity mistake: When Hannah produces the liquorice gum to gross out Oliver, she takes a bite out of the gum and leaves half of the stick in her hand, but in the next shot she isn't holding any gum.
Visible crew/equipment: When Miley is chewing gum in front of Oliver, you can see stage lights reflected in her sunglasses.
Continuity mistake: When Miley is in the limo for the first time, she puts on her seat belt and you can see it is over her shoulder, but when the camera cuts back to Lilly and Miley, the seat belt is beside Miley's shoulder.
Answer: Many actors and actresses tend to be quite secretive about their ages, probably to try to fend off being automatically dismissed for possible roles as too old or too young or even just because they consider it to be nobody's business but their own. Earles appears to be one of these; as a result, reports regarding his age tend to conflict. However, as a rule, public records can generally be accessed to give a reasonable idea of their true age. He is, for example, listed as an alumni of Rocky Mountain College, from which he graduated in 2000, unless he graduated at the age of ten, that rules out the idea that he's only nineteen, realistically putting his age at at least thirty years old. A name search engine on the internet turns up a Jason D Earles who lived in Billing, Montana, near the college in the right time period, with a listed birth date of April 1977 - an individual with the same name and birth date also has a listing for California, where the actor currently lives. Other information available online also tends to point to a likely birth year of 1977. While Earles and his agent have every right to fudge his age as it appears on his resume for professional purposes, most of the verifiable information suggests that he is indeed currently 32.