This Weekend in Somerville: Rock Climbing Fans Unite, Somer-Vinyl Palooza

Climb for Cerebral Palsy
If you want to watch a film that will make your palms sweat, check out the Reel Rock Tour at The Center for Arts at the Armory Friday. You'll see films about some hardcore climbers, and you'll raise money for United Cerebral Palsy of MetroBoston. It's at 7:30 p.m.

These Boston-area bands play Davis Square Theatre starting at 7 p.m. Friday.

Orange Leaf grand opening
Orange Leaf Frozen Yogurt is celebrating its grand opening Saturday. The froyo parlor, at 260 Elm St., will have free yogurt, raffles and a D.J. throughout the day.

Somer-Vinyl Palooza
Collectors will find thousands of vinyl records and CDs of all genres. It's at 10 a.m. Sunday at the Holiday Inn.

Cambridge Orchestra
The Orchestra performs Brahms, Strauss, Smetana. It's Sunday at 4 p.m. at The Center for Arts at the Armory.

Karen Grenier
The singer performs for free at The Center for Arts at the Armory Saturday at 7:30 p.m. 

Not so Silent Sunday: Charlie Chaplin's The Kid
Watch Chaplin's classic 1921 film, "The Kid," accompanied by an original full-length musical score. It's at 7 p.m. Sunday at The Center for Arts at the Armory.