Best Bets

TubaChristmas anyone?

The Free at the Kimmel series - to mark the 10th anniversary of the Kimmel Center - is offering TubaChristmas Celebration at 1:30 and 5:30 p.m. Saturday, when more than 100 regional tuba, sousaphone, and euphonium players join together to perform holiday classics. The center also scheduled a performance of klezmer music by the Fabulous Shpielkehs at 5:30 p.m. Dec. 23, dramatic readings of holiday literature at 11 a.m. Dec. 24, and the annual New Year's Day celebration from 10 a.m. to 6 p.m. Jan. 1 on its Commonwealth Plaza.

The War on Drugs/Sun Airway. Fishtown quartet the War on Drugs plays a homecoming show at Union Transfer on Saturday. The Adam Granduciel-led band followed up 2008's Wagonwheel Blues and last year's Future Weather EP with the full-length Slave Ambient, its most fully realized conflation of modal guitar ambience and beat-poet wordslinging. Also on the bill: Philly band Sun Airway, back home after a European tour in support of last year's Nocturne of Exploded Crystal Chandelier, and Ape School, the one-man band of Michael Johnson, formerly of the Lilys and Holopaw.

- Dan DeLuca

New this week: Young Adult ***

Charlize Theron inhabits every inch of the bitter ex-prom queen who returns home to steal her old high-school beau away from his wife and newborn. Pitch-black comedy, but the script falls apart exactly when it needs to be most taut and true. From the Juno team of director Jason Reitman and writer Diablo Cody. 1 hr. 34

R

(sex, nudity, profanity, alcohol, adult themes)

- Steven Rea
Being Elmo (***1/2) This documentary looks at Kevin Clash, the man from working-class Baltimore who created the lovable Muppet. 1 hr. 16 PG (mild language including a brief drug reference)

- Carrie Rickey