I know someone has had to deal with this. PLEASE HELP

it sounds like maby something other then rust and corrosion is the problem. maby dirt in it or something is bent so it simply wont move. will the handels work? or they probably just pull up part way and dont do anything. i dont know how it all works on these cars but could you disconnect it from the striker and get it open? i bet it would make it easier if the door would open lol. did it just happen or was it parked for a while?