Weekend events: A weekend with too much to do!

Rooftop Films opening night: Rooftop Films kicks off its 2011 summer season Friday night with a program of short films from around the world. Get there early for live music by Dustin Wong. (Fri., doors at 8 p.m., films at 9 p.m., Open Road Rooftop, 350 Grand St., rooftopfilms.com)

Rembrandt Night at the Frick: The Frick Collection stays open late Friday night to celebrate its current exhibit, "Rembrandt and His School." There will be live music and curators on hand to discuss the works. (Fri., 6-9 p.m., frick.org)

Manhattan Cocktail Classic: More than 100 events around the city give you a chance to indulge at some of New York's hottest bars (including Death & Co., above). Friday's gala starts the classic in style. (Fri.-Tues., manhattancocktailclassic.com)

Park Slope Bike Jumble: Bike enthusiasts, come on down. In addition to vendors from around the country, the event is hosting a "Best NYC Bike" competition. (Sat., 10 a.m.-4 p.m. The Old Stone House, 336 Third St., Park Slope,  nybikejumble.com)

Red Hook Lobster Pound Truck: You know it's summer when lobster rolls become abundant. Indulge during the first weekend of the season for the Red Hook Lobster Pound's traveling truck. (Follow @lobstertruckny for locations.)

Odd Future WGKTA: Odd Future has enchanted (and repulsed) critics with deliberately offensive lyrics and a frustrating coyness as to whether they're just kidding around. (Fri., 11 p.m., Highline Ballroom, highlineballroom.com)

New York Photo Festiva: Head to DUMBO for all things photographic, from lectures to exhibitions to scavenger hunts. (Until Sun., newyorkphotofestival.com)