1970 dodge dart driver door wont open

Try pushing the door into the body and hold in, lock and unlock door with key then the inside lock knob, then try to open, if still no go it's time to remove the door panel to get into assembly and try to get released with a hook wire.
Question how long since the paint job, I see overspray on the latch of the door that still opens, possible paint gumming up latch and won't release.
been years since it was painted. but never had any door issues. so you know how to remove the inside pannel. cuz im going to have the front bench Seat in my way