Five things to do today – genealogy, 1940s music, 'Revenge of the Nerds'

It's all fun and games today!

For a sandy treat: The Do AC Sand Sculpting World Cup begins today at the Pennsylvania Avenue beach in Atlantic City, NJ. Sculptors will be creating sandy works of art all day today from 9 a.m. to 9 p.m.

For a family tree: Dig into your past at the National Constitution Center and see how far your family tree's roots go at their introductory genealogy workshop, running from 10 a.m. until 3 p.m. at the Independence Mall-located museum.

For social media-savvy parents: If the time your kids spend on Facebook and Twitter leaves you wondering "What are they doing on there?" get some answers at this 6 p.m. seminar at the Willingboro Public Library in Willingboro, NJ.

For a trip back in time: Forget 2014, the 1940s is where it's at. The Bristol Riverside Theatre in Bristol, PA premiers a new show at 7:30 p.m. tonight where the cast performs hits from the decade.

For movie commentary: Comedian Doug Benson will provide commentary to Revenge of the Nerds, screening at 9 p.m. at the Trocadero Theatre. In celebration of the 30th anniversary of the release, two stars of the film, Curtis Armstrong (Booger) and Brian Tochi (Toshiro Takashi) will also be in attendance at the Chinatown theater.