There aren't all that many new ideas. Take Death Wish. A guy becomes angry after what has happened to his family/buddy/self/whatever, and goes around killing people. See also: The Patriot, Rambo. This is a theme of Shakespeare's most creepy play, Titus Andronicus. Only Titus is decidedly more crazy-as-a-bedbug than any of the above. Mel Gibson tomahawking a dead guy is child's play by comparison. Rambo knifing people at random is likewise.
Or, a couple has come apart. An event of some sort brings them together, they live happily ever after. For a while, anyway. See: His Girl Friday, Die Hard, among others.
Practically every basic plot has been used and reused. Characters are changed, situations are changed, and sometimes there are two or more plots thrown in. But the basics tend to be the same.