Is there a better way to spend an evening than watching 17 performers battle it out for a place on the chorus line? If there is then I don’t want to know about it. For a show that was once the longest-running Broadway production (until Cats came along in the ‘90s), A Chorus Line comes with a big reputation. You’ve got to go all in on the ambitious choreography and show-stopping tunes or go home… and this production is all in. A Chorus Line, which is currently at the Marlowe Theatre in Canterbury, made its Broadway debut in 1975 and ran for more than 6000 performances. Since then it’s travelled…