Movie name where a kid finds a dragon in a museum?

It's driving me CRAZY that I can't remember the title to this movie, and Google is no help. A boy meets, is initially scared by (I think--at least I was scared), and then befriends this huge purple (?) dragon/dinosaur creature. They fly around, have adventures. Can't remember the ending. Doesn't...

This old film that I saw where this young kid finds a very old and dusty book and begins to read it and he goes into the world where he finds a giant snake white dragon (very old) and he goes on an adventure there is also a scene I remenber where he is with a horse and the horse drowns in the swamp...

Movie museum curator faking objects meets woman in restaurant marries has little girl. Daughter finds valuable necklace in father's briefcase. Wife finds matchbook in husband's suit pocket from New York hotel. Probably filmed about 1995 or sooner. Drivin' me crazy! Ricq

Hi There was a movie in the 80's (i think) about dragons. It was a cartoon. All I remember is the dragons could talk to each other and one bit where there was a whistling or screaching noise that drove them crazy. Its been bugging me as to what this film is called for some time now. I loved...

I fell asleep during a movie and would like to finish it. It is about a man ( with a false id that kills a co worker, steals a necklace from the museum he works at, fakes his death?) his wife and little girl find out he wasn't who he said he was after he dies. Possibly from the 80's or 90's.