ART: Gallery 1044 presents Water Chronicles, a solo exhibition of painted photographs by artist Leslie Morgan, which "captures our timeless connection with water through nostalgic images and assemblage frames from reclaimed materials." (6 to 9 p.m., Gallery 1044, 1044 Larkin Street)

FILM: Director Roko Belic and comedian/educator Michael Pritchard will be in person at the Roxie tonight for the 5:15 and 7 p.m. screenings of Happy, which explores the swamps of Louisiana to the slums of Kolkata in search of what really makes people happy, combining real life stories and interviews with the leading scientists in happiness research. (5:15, 7 and 9 p.m., Roxie Theater, 3117 16th Street)

DISCO: Don your short shorts and tube socks for a sweaty night on the rink at Mighty's Roller Disco, featuring sounds by Anthony Mansfield, Kimmy Le Funk, and Carey Kopp. (9 p.m. to Midnight, Mighty, 119 Utah Street)