How Do I Take Off Parental Control To Watch Family Guy On Dvd On My Ps2?

I tried to play my family guy dvd on my ps2 but when i did it said parental control has blocked me from playing and if I wanted to continue anyway. I selected yes and then it said please enter password but I don’t know the password. Is there anyway to turn off parental control or to reset the password on my PS2 so I can watch Family Guy on Dvd?