THE line, "I carried a watermelon?" has, for women, become synonymous with embarrassing behaviour or cringe-worthy moments.

It is, of course, one of the most famous lines from the ever-quotable Dirty Dancing - where Baby (Jennifer Grey) goes from girl to women when she learns to dance and finds love with teacher Johnny (Patrick Swayze) - celebrating its 20th Anniversary via a special-edition release.

It's often overlooked that as well as a classic soundtrack, touching love story, sizzling choreography and more iconic scenes than you can shake a watermelon at, at the heart of Dirty Dancing there are some serious and brave issues explored. Especially for a movie often dismissed as a chick flick.

There is Penny's disturbing and very nearly life-threatening experience of illegal abortion, the brutal class divisions and prejudices between staff and guests at Kellerman's and, of course, Baby's sexual awakening.

Revisiting a classic is by no means the biggest treat here. Disc Two's wide selection of bonus features proves even if you have watched it 100 hundred times - and I know there's a lot of you out there who have - there's much more to feast your hungry eyes on.

Smirk as Swayze gets all luvvie and talks about ballet, the famous lift being a metaphor for life and writing one of the film's anthems, She's Like The Wind.

Be surprised to learn the actress playing Baby's mom (a zesty Kelly Bishop) was originally Lynn Lipton who could not continue filming due to illness. And marvel at the barely-aged but new-nosed Jennifer Grey revealing audition gossip such as Billy Zane almost bagging the part of Johnny and her almost getting Flashdance.

Plus gawp at a few deleted scenes which, had they been included, would have threatened the movie's teen-friendly rating.

Watching these extras another revelation is made, the film was widely expected to be a flop. But, still, after all this time, nobody puts Dirty Dancing in the corner.