Dianna Williams is a choreographer and dance instructor known for her work on the reality television show "Bring It!" She is not an actress and has not starred in any movies.
Lacey is a more common name for actors, and you might be thinking of a different person. Could you provide more information about the movie you're looking for?
Please tell me:
* The movie title (if you remember it).
* Any other details about the movie, like the genre or the year it came out.
* Anything else you remember about the character Lacey played.
With more information, I can help you identify the movie you're thinking of.