'Movie Sound Effects: How Do They Do That? (2017)' is a short film available on 'The Lego Batman Movie (2017)' Blu-ray. Despite what you may reasonably assume from its title, this isn't a behind-the-scenes featurette. Instead, it's a blink-and-you'll-miss-it slice of silliness that sees a handful of Batman's most iconic villains take turns auditioning to be the official laser sound effect in the feature film. It starts out simply enough, but soon devolves into an outright odd experience that's bemusing but not especially funny. It doesn't seem to understand - or care about - the personalities of its villains (one, in particular) and it just feels like an exercise in chaos. It isn't bad, but it isn't particularly amusing (even though it does provoke a smile). It's fairly inconsequential fluff that's strange enough to keep you watching but is over before you know it. At least it allows a certain someone to finally sanction his co-star's buffoonery.
