Movies/TV Shows with hot guys ending up with ugly girls?

So there's an incredibly wide variety of films/shows where the hot chick ends up with the less-than-conventionally-attractive bloke (e.g. every Seth Rogen film to date). But what about the reverse? I can think of loads of the first scenario off the top of my head but when I try to think of a film/show where a hot dude ends up with a less-than-attractive chick I'm left completely blank.

The most I can come up with is when a guy falls for an "average" girl who wears glasses and her hair in a bun and by the end of it she's a swimsuit model lookalike (which is when he realizes he REALLY loves her or something.)

Do you think this perhaps feeds into some men thinking it doesn't matter how they look or act, that they're entitled to a hot chick despite probably being average or less than themselves?

Let's take my Seth Rogen example from earlier - think about the film Knocked Up. Let's face it, the guy's an immature, selfish twat through the majority of the movie and only really starts trying towards the end. I still can't comprehend why she tolerated him to begin with, other than the fact that it was a romcom and the 'average guy' (average for a 16 year old, maybe) needed to end up with a hot chick.

This isn't to say that people should "know their limits," so to speak. I just think it's a fairly hypocritical attitude - when this scenario's put into the real world, they want to have their fantasy girl, get pissed off when she goes with someone presumably more attractive (probably calling her shallow/superficial along the way), while presumably ignoring all the 'average'-looking girls who are attracted to them because they don't match up to their standards.

Obviously sometimes it does work out, the not-so-hot guy ends up with a super-hot chick, or the not-so-hot chick ends up with the super-hot dude, but if we're being realistic it's relatively rare to see such a dramatic difference between partners. Most people tend to pair off with people who are on a similar "level" of attractiveness as themselves.

So are movies like Knocked Up and the hundreds (thousands?) of other average-dude-gets-hot-chick films causing some men to think about things a little less realistically than they perhaps should be? Are they perpetuating the whole "if you don't like me, you're shallow, even though I've probably turned someone down I wasn't attracted to before too" mentality which often leads to serious self-esteem issues and bitterness?

Basically, are those films to lads what chick flicks are to girls in terms of what we come to expect from love/relationships/coupling? Are they learning to expect hotness regardless of how they act/what they look like/whatever else in the same way that we learned to expect grandiose acts of love and romance?

(if there's any generalizations in there it's only shorthand; as a person who was never into chick flicks I'm not going to claim all women are, and I'm not going to claim all men think this way either. I am very aware people are different overall. )