Let's start from the basics. Whatever you do, don't tell us the end of the film! If there´s something film review readers hate is spoilers. When writing about the plot it is better to keep it brief and simple.
Don´t use any word more than twice and try to avoid too simple adjectives such as "good" or "interesting".
I´ll give you an example of this:
Instead of saying "the acting was good", say something like "the actors´performance was outstanding"!
Instead of saying "the film was interesting", say something like "the film was riveting".
Film Review: Practical Magic
I would no doubt recommend Practical Magic to anyone who is fond of fantasy films like me, or who is interested in witch stories or magic.