If you made over $5700 for the year, you are required to file since you're being claimed as a dependent. If you don't, the IRS WILL come after you unless you had enough withheld that you'd get a refund if you filed - then they won't bother, they'll just keep your refund.
Without info like how old you are, if you were a full time student in 2010 and if so how long, and how much you made, it's a little hard to tell whether your dad can legally claim you. If you're over 18, were not a full time student in 2010, and made over $3650, it's easy - he can't claim you.
If he can't legally claim you, you can file your own return and claim yourself. If he can claim you and you made over $5700 for the year, file your own return and do NOT claim yourself.