Probably the ones in its a wonderful life, stewart granger, seeing as he left them just because of money problems at xmas, um Kevin mcCallisters, although his was maybe just a case of mistaken identity,
Song of the South, where little Bobby runs away after his parents when they decide to leave him and I think they took his dog too.(only because the aunt was mean).
Who else on film, The Secret Garden perhaps, seeing as she had that wicked aunt of hers who supposedly looked after her whilst she literally had to escape for fear of being seen and ends up in her only cousins room.
The ones in James Dean Life stories were not good seeing as his dad thought he wasn't his so practically ignored him his whole life.
In Titanic her mother was off to Rose because she wouldn't charm the mothballs off her fiancé and phantom of the opera because the 'elephant man' was real and he was made a laughing stock out of. Oh and Billy Elliots because they said he couldn't do ballet.(and he did anyway).