Character mistake: The pilot announces that they will be flying from the 310 (California) to the 212 (New York City/Manhattan). There is no airport in Manhattan. The closest airports are JFK International and LaGuardia which are both in area code 718 (Queens).
Character mistake: Juliette Simone praises Eva in an across-the-room exercise but calls her "Aiesha." That is the name of Zoe Saldana's dance double.
Character mistake: After learning by telephone that he would be part of the Monkees and making records and a TV series, Mike says, "Man, it's a win-win situation." That expression was not in use in 1965; it didn't become widely used until the early 1980s.