On the heels of Matthew Vaughn‘s unexpectedly well-received 2010 film (we thought it was OK) comes Jeff Wadlow’s equally zany but lack-lustre sequel. From the get go, Kick-Ass 2 feels like an imitation as opposed to a follow up and the film’s unevenness only calls more attention to the absence of Vaughn. Now that’s not entirely a bad thing as Aaron Taylor-Johnson, Chloë Grace Moretz and their band of colorfully righteous bad-asses do keep things breezy and entertaining. But it feels stiff and phoned in as things don’t click like they should or take the story anywhere worthwhile. You can’t blame Wadlow or the crew too much – this is a property called Kick-Ass after all, it’s not Shakespeare. This sequel doesn’t…