This movie is about a grown man who has something mentally wrong with him in which causes him to get into trouble when he befriends a little girl who like doesn't like her family or something! I don't know for certain but I remember a train and either a motel or bed and breakfast! I don't know how much that helps but the movie has to have been mad in the early 90's or late 80's!
Please help if you can!

Might be Leon or The Professional. Also, might be Sling Blade.

The movie your thinking of is... ummm... uhhhh... Digging to China... or something.. It had kevin bacon as a retard and a little girl who run away and eventually kevins character gets sick and they hold up in a train... I think.





Here is the link

Sounds a bit like "lawn dogs"

I just saw this recently. Its definitely Digging to China.

I believe you're speaking of the movie known at "What's Eating Gilbert Grape"

I was going to say Lawn Dogs but I've never actually seen it! Just sounds like the synopsis I read...