WHAT Islip Art Museum's annual invitational this year is titled "Flag Day" to coincide with upcoming patriotic events sponsored by Islip Arts Council -- chief among them the July 16 "Salute to Armed Forces" concert with the Long Island Philharmonic at Heckscher State Park in East Islip. "We scratched our heads about installing all these flags in our relatively tiny galleries," says museum director Mary Lou Cohalan. The show, curated by Janet Goleas, an artist and critic who directs East Hampton's Eric Firestone Gallery, focuses on the meaning of patterns and colors in flags. But some selections also make social commentary on these patriotic symbols.
INFO $3 suggested admission; islipartmuseum.org, 631-224-5402
WHAT "Guilty Conscience," by longtime teleplay collaborators Richard Levinson and William Link, opens tonight at Arena Players in a stage adaptation directed by Frederic De Feis. Originally a 1985 TV movie starring Anthony Hopkins and Blythe Danner, who has a home in the Hamptons, "Conscience" is the twisted tale of a criminal attorney who plots to kill his wife only to find she has a plot of her own. Jacqueline Muro and Dean Schildkraut play the murderously minded spouses at Arena.
INFO $20, $25 on Saturdays; arenaplayers.org, 516-293-0674
WHAT Lots of choral and opera works to hear in the next few days:
* The Choral Society of the Hamptons presents its 65th anniversary concert with Greenwich Village Singers, South Fork Chamber Orchestra, soprano Darynn Zimmer, mezzo-soprano Cherry Duke, tenor Nils Neubert and baritone Mischa Bouvier led by Mark Mangini.
* Opera of the Hamptons presents "From Opera to Broadway," a concert of hit arias and show tunes.
* Catch a Metropolitan Opera encore of "Don Pasquale" in HD at a local theater.