Definitely a misleading trailer
I expected a zombie/action movie since that's all they showed in the trailer. Instead I get some drama/love story that I didn't care to see.
But I can see why it was advertised as a action movie. They knew the majority didn't care to see a boring british love story. Since zombie is the in thing, they decided to capitalize on it by being deceptive and tricking people into seeing this boring crap.
Well played.