The idea has caught on to the extent that there now are CLAW — Collective of Lady Arm Wrestlers — offshoots in 25 cities across the nation, including Chicago, Brooklyn and New Orleans. And two local filmmakers, Brian Wimer and Billy Hunt, will be premiering their documentary film, "CLAW," at 9 p.m. Saturday at the Paramount Theater as part of the 26th annual Virginia Film Festival, which continues through Sunday.