anime search help?

Question

I'm looking for 2 old anime movie but I can't remember their names.
1. The story is about a girl and a boy that are chased by a robot or an android. the could protect them selfs by using some kind of a magnet .. the movie was released earlier than 1992.
2. The second was about ex-criminals that are sent to a skyscraper to kill!? the architect of the building that locked himself in on room. I also remember something about a monster.

Answer 1

Number one isn't Laputa: Castle in the Sky, is it?
http://en.wikipedia.org/wiki/Castle_in_the_Sky

I have not clue about the second one.