Karambolage

1865: Swiss captain Bluntschli fights as mercenary in the war between Bulgaria and Serbia. When his group's attacked by a few Bulgarian troopers, he learns that he's got the wrong ammunition for his cannon and has to flee. His flight leads him right into the bedroom of his enemy's fiancée.

Hamlet, Prince of Denmark, returns home to find his father murdered and his mother remarrying the murderer, his uncle.