Could someone straighten the showtime board before the next group arrives?

How to say “Could someone straighten the showtime board before the next group arrives?” in Japanese

In Japanese

次(つぎ)のお客(きゃく)さんたちが来(く)る前(まえ)に、誰(だれ)か上映案内板(じょうえいあんないばん)の傾(かたむ)きを直(なお)してくれる？

Tsugi no okyakusantachi ga kuru mae ni, dareka jōei annaiban no katamuki o naoshite kureru?

Could someone straighten the showtime board before the next group arrives? in other languages