its about this girl shes about 19 i think around bout that age she goes in an arcade n into this machine were you can make your perfect date or something but then theres a power cut or something n the machine goes all wierd and every one is running from the building and wen she gets out coz she was trapped in the machine i think she is the dream person she made up in the machine but shes wearing her chlothes then her best friend whos a boy i think she is following him n she tells him its her n then he beleivs her n she cams out in his room i think its something like that i can remember watching it years ago but its a good film so shes a girl trapped in a lads body and then i cant member the rest please help