So the movie is kind of similar to conehead the movie  lol but basically its like a family trapped in some other planet they are in some castle like place. The leader wants to force their daughter to marry him. The place is full of weird alien creatures. Its more like a sci fi comedy. Theres a guy who tries to save the girl, I remember one scene where the leader tries to get rid of him and throws him down the sewer pipes of the castle & hes like in a huge sewer with weird slimey aliens. Please help! I cannot remember this movie & its killing me lmfao