Noises Off Director Geoff Elliott and a superb cast hit the banana peel running and never let up in their crowd-pleasing reprise of Michael Frayn’s 1982 farce-within-a-farce, a giddy glimpse of a theatrical hothouse populated by doddering drunks, vapid bombshells, and cue-challenged stars, where titanic egos and meager talents clash, hilariously. (F.K.F.) A Noise Within, 3352 E. Foothill Blvd., Pasadena. Sun., next Sun., 2 p.m.; Fri., 8 p.m.; Sat., 2 and 8 p.m.; ends May 20. $25 and up; student rush, $20. (626) 356-3100.