5 Things to Know: 'Battle for Brooklyn' Showing, Silly Dilly Band and Elisa Flynn (not together), More

1. You need to find out how Atlantic Yards became the Barclays Center. Head to Fort Greene to see an outdoor showing of  8:30pm. , Corner of DeKalb Ave. and Washington Park. Free. (And bring lots of cold drinks. It's supposed to be hot tonight.)

2. You need to have your voice heard. Head to the . It's the last one before the summer break. 7:00pm, 1491 Bedford Ave.

3. You need a night out. Head to the to see . 9 p.m. 683 Washington Ave.

4. You need to get your kids to the library. Today's your day: it's the  at the Central Library including a performance by the Silly Dilly Band, a drum circle led by the Brooklyn Conservatory of Music, and selections from the Calpulli Mexican Dance Company. Join DJ Colleen Crumbcake in the afternoon for a dance party! , 10:30-2:30 p.m., all ages, Free. Or, s.

5. You need to know if your train is running and if you have to move your car. There are no planned subway changes affecting Prospect Heights today, according to the MTA. As for parking, alternate side will be suspended today for Shavuot, according to the NYC DOT.