Aero Theatre

'Once Upon a Time: The Films of Sergio Leone' at American Cinematheque Where: Egyptian Theatre, 6712 Hollywood Blvd., Hollywood, and Aero Theatre, 1328 Montana Ave., Santa Monica When: Fri. and Sat., Thu. and Feb. 24 Fri., 7:30 p.m., Aero: "A Fistful of Dollars" (1964) and "For a Few Dollars More" (1965) Sat., 7:30 p.m., Aero: "The Good, the Bad and the Ugly" (1966) Feb. 23, 7:30 p.m., Egyptian: "Duck, You Sucker" (1971) Feb. 24, 7:30 p.m., Egyptian: "Once Upon a Time in the West" (1968)

MOVIES Horror fans and insomniacs alike should appreciate the American Cinematheque's sixth annual Dusk-to-Dawn Horrorthon, an all-night movie program complete with free snacks, giveaways, special trailers and shorts, and other surprises. The lineup includes "Pet Sematary," "Videodrome" and "Just Before Dawn. " Aero Theatre, 1328 Montana Ave., Santa Monica. 7:30 p.m. Sat.-7:30 a.m. Sun. $20. http://www.americancinematheque.com

'The Boy Friend' When: 5:30 p.m. Sunday Where: Aero Theatre, 1329 Montana Ave., Santa Monica Price: $11 Info: http://www.americancinematheque.com

Nicholas Ray Centennial When: 7:30 p.m., Aug. 3 ("Rebel Without a Cause") Where: Egyptian Theatre, 6712 Hollywood Blvd., Hollywood When: 7:30 p.m., Aug. 5 ("Johnny Guitar," "In a Lonely Place"); 7:30 p.m., Aug. 7 ("Bigger Than Life," "Knock on Any Door") Where: Aero Theatre, 1328 Montana Ave., Santa Monica Price: $11 general; $9 seniors and students Info: http://www.americancinematheque.com

'Trips, Journeys and the Return Home: An In-Person Tribute to Peter Fonda' When: 7:30 p.m. Thursday and Friday Where: Aero Theatre, 1328 Montana Ave., Santa Monica Admission: $11 Information: http://www.americancinematheque.com

POP MUSIC Cee Lo Green and Big Boi Two of hip-hop and soul's most adventurous, progressive figures team up for a night of impressive beats, virtuoso mike work and, yes, a spirited take on "Forget You" in its original, bawdier version. They each had one of the best records of 2010, and this set will affirm how much ground is left to till in their genres. Club Nokia at L.A. Live, 800 W. Olympic Blvd., Los Angeles. 7:30 p.m. $39. http://www.clubnokia.com. Martha Wainwright Her third album took a turn away from original folk tunes to a full-length tribute to legendary French singer Edith Piaf.

Celebrate Valentine's weekend with a four-night tribute to the silver screen's most romantic films at "Romancing the Screen. " With the tear-jerker "The Notebook," the May/December love of "Harold and Maude" and the grand, old-fashioned romances of "Casablanca" and "Gone With the Wind" ? even the dark and twisted obsession of "Double Indemnity" ? there's something to make almost every heart beat a little faster. The Aero Theatre, 14th Street and Montana Ave., Santa Monica, and the Egyptian Theatre, 6712 Hollywood Blvd.

'Mr. Magoo's Christmas Carol' Where: Aero Theatre, 1328 Montana Ave., Santa Monica When: 4 p.m. Saturday Price: $11 Info: http://www.americancinematheque.com