Wizard is the first Kamen Rider series I've really followed, and I've been enjoying it immensely. Even have the Figuart of Wizard preordered on Amazon (only other one I own is Black RX to serve as my Masked Rider figure). I know Wizard premiered in the last movie for Fourze, and Beast apparently premiers in the upcoming crossover movie, but are the movies at all considered canon, do the events in them actually matter to the series, should I bother trying to find a way to watch them subbed as I have the show?

 

Kamen Rider movies usually hint at upcoming secondary riders, forms or even some enemies. However they're usually one-off events that aren't mentioned much if at all afterwards. Movie-specific powers or characters usually stay that way, only appearing in other movies as opposed to the actual series. A good example is Kamen Rider OOO's Burakawani form reappearing in Movie Wars Ultimatum. They are considered canon, though. And even if they are one-offs, they're still fun to watch most of the time.

Sentai movies tend to be the same way, only with movie-debuted abilites showing up maybe once or twice in the actual series.