Chemistry between actors is one of the most difficult things to fake in a movie. You can CGI in monsters and you can cleverly edit around an actor’s abrupt weight gain, but there’s no post-production tool that lets you magically create a spark between your two leads. It’s either there or it’s not.
You might think that actors – ya know, those people who are paid to pretend to be any number of things – might be able to utilize the skills of their craft to fabricate some believable chemistry. But more often than not, that simply doesn’t pan out.
That’s why the casting process is so important. Just because you’ve hired two very talented actors, that doesn’t mean they’ll automatically have a good rapport with each other. For every Kate Winslet and Leonardo DiCaprio, there are several Kristen Stewarts and Robert Pattinsons.
And nothing sinks a good movie – or turns a mediocre movie into an abysmal, life-draining experience – like terrible chemistry.
The following onscreen couples aren’t just missing that special spark, they’ve taken the spark out back, murdered it, and buried it where no one will ever be able to find it again.