Best of Both Worlds combines concert and backstage footage. It's hard to not see the expert marketing at play throughout the presentation, but at the same time, it's a fairly interesting look at the current 'tween phenomenon and a good example of the current teen culture. I wasn't too impressed with the concert stuff, mainly because it's not my style of music, but it was hard to not have some respect for Miley Cyrus after watching the backstage segments. I know she's been beat up in the Court of Public Decency lately (and to be honest, I'm still trying to wrap my head around what I consider a bit of an overreaction), but Cyrus comes off as a fairly intelligent, level-headed girl. She's a likeable personality and really saves what otherwise feels like a hastily-produced presentation.
In addition to singing her list of 'tween hits, her dad, Billy Ray, joins her on stage for a few songs. The Jonas Brothers, who are sort of the "next big thing", also show up for a few songs. Though the marketing line might lead you to believe they're just another overly-marketed, manufactured group, they're not that bad. The boys have some real talent and actually manage to upstage Cyrus as far as quality - at least in my mind.
I rarely talk about audio quality, but with Best of Both Worlds, it is one of the primary aspects of the presentation. First off, expect a whole lot of high-pitched 'tween screaming both during the concert and a fan-focused segment where little girls talk about how much of an inspiration Hannah is to them ("She's like... so awesome... and like, really talented..."). Looking down from my ivory tower of adulthood, it's easy to dismiss the comments, but I'm sure when I was that age I had the same reaction to things, so you have to take it in stride. However, if you're watching this you're a Hannah Montana fan or the parent of one, so either way it won't phase you. Fan interaction is also encouraged, so expect to gain a few more "speakers" depending on how many kids are watching.
Anyway, back to the audio. The concert presentation is exceptional, especially if you have access to a surround sound system. There's a certain manufactured element that takes something out of the "live in concert" feel. Audiophiles won't be incredibly impressed, but again, that's not the audience.
My main reason for checking out Best of Both Worlds was the 3-D aspect. I don't remember my first 3-D movie, but I've always been fascinated with the process. Best of Both Worlds features the old-style, red and blue glasses style 3-D rather than the full color style. Four pairs of glasses are included with the movie and I'm pretty sure I saw additional pairs at Wal-Mart, so if you need more than four, check there.
Though the 3-D can be headache-inducing if you haven't found the "sweet spot" in your viewing area, it's really pretty fun. It is worth noting that the entire presentation isn't in 3-D, just the concert parts, so constantly removing the glasses does get tiring. The quality is fairly good - at least based on my limited experience with home 3-D experiences - but I eventually got tired of seeing everything with a purple tint and just watched the concert in boring old 2-D. This isn't a dismissal of the option, because it is a neat addition, though on the list of features, it is more of an undercard than a main event.
Best of Both Worlds isn't something for everyone. Although you can probably get away with the DVD purchase, if you own a Blu-ray player, the upgrade in sound and picture quality might be enough to justify spending the few extra bucks. If, like me, your interest is perked up by the 3-D thing, the effect isn't enough to warrant a purchase.