MERRIMAN VALLEY — Weathervane Community Playhouse’s 2007-08 season-opener, “I Do! I Do!,” will take the stage Sept. 5-23 for 12 performances. This musical by Tom Jones and Harvey Schmidt is based on Jan de Hartog’s “The Fourposter” and has just two characters, Michael and Agnes, an upper-class couple who marry in 1898. The audience follows them through the next 50 years in a musical scrapbook. Chanda K. Porter and Ron Cuirle star. For dates, times and ticket information, call (330) 836-2626 or visit www.weathervaneplayhouse.com. The play is recommended for audiences ages 12 and older.