Singing in the rain!
If you have Netflix- the Dean Martin/ Jerry Lewis specials were a hit with my kids- they crack up at them- good clean fun.
Lost in space episodes are great too.
UP by Disney is very cute.
Old Yeller.
Princess Bride- I duno- If this is the movie I remember it is, it would not be appropriate for young children! A funny movie for us adults for sure, but please preview this before letting kids watch it.
Golden Compass had some dark stuff in it- I dont like movies that glorify and celebrate the occult and this one, any harry potter, does that. In fact a lot of movies that Kat mentioned have occult /new age themes.
There are plenty of PG movies that have innapropriate stuff for small kids. Some parents are more lenient or have different requirements than others. Previewing can help.