Ugly-duckling older guy falls in love with a beautiful young woman. Offering her a marriage of convenience, to give her baby a father, might be a way to win her affection... Ya think?
Harry Potter and the Deathly Hallows: Part 1
The Lion Guard: Return of the Roar
Harry Potter and the Goblet of Fire
Scooby-Doo! & Batman: The Brave and the Bold