
I think you should certainly see this film, because I believe you'd derive a certain amount of enjoyment from it (only in a "fun timekiller" way, of course - definitely nothing more, but then you know that already), but I wonder whether in your case it might be wiser to hold off for the DVD release, as I shall be doing with INCEPTION.
Although there's no similarity in terms of plot (or indeed budget), THE EXPENDABLES kinda struck me as what LIVE FREE OR DIE HARD might have been like had it been good (Willis crams more charisma and badassery into his two minutes as Mr Church than he did in the entirety of his lazy last turn as McClane). It's also, I guess, rather like a less distasteful and more tongue-in-cheek and fun RAMBO (2008) without the intense gore.
And, happily, THE EXPENDABLES is vastly superior to other recent action sequels like the aforementioned DIE HARD 4.0, CRYSTAL SKULL and the last two dire TERMINATOR flicks. It isn't technically a sequel, of course, but it feels like one, and oddly enough that's what makes THE EXPENDABLES work - a huge amount of audience goodwill and character identification seems to be carried over from previous movies featuring Sly, Bruce, Arnie, Li, Statham and co. - these guys may have different character names here, but it feels as though we've known and followed them on many previous adventures, which of course we have, and so there's quite a bit of affection and history there. Had THE EXPENDABLES been made in precisely the same way, but with other actors or unknowns, then it wouldn't work at all. Essentially, it's a nostalgiafest, but a good and entertaining one that very much "does what it says on the tin".
Oh, and rest assured that it's miles better than THE A-TEAM. Not that I imagine you've seen that one, since I doubt it's your cup of tea, but just in case you've seen it, were horrified and are reluctant to subject yourself to more of the same, then fear not.