Where to GO this week!

Friday

February 21

Bohemian rhapsody

A plot-light story about impoverished creatives getting drunk and moaning about their relationships, “La Boheme” is basically “Girls” set in 1840s Paris. Complete the comparison by seeing it performed in a Williamsburg loft when LoftOpera stages the popular opera, complete with a 19-piece orchestra.

9 pm at the 1869 [215 Ingraham St. between Stewart and Gardner avenues in Williamsburg, (718) 451–6531, www.loftopera.com]. $20.

Saturday

Get him a body bag: Catch up on 1984 classic “The Karate Kid” at Videology on Feb. 23, followed by a Q&A with the director.

Associated Press / Columbia Pictures

February 22

Get sauced

Got a craving for some top-shelf condiments? Artisan pop-up market Batchery is gathering makers of local hot sauce, honey, jam, peanut butter, salsa, relish, and more in one place. There will also be non-spreadable foods available for sampling and purchase, plus free hot chocolate and live music.

Noon at Bat Haus [279 Starr St. between Wyckoff and St. Nicholas avenues in Bushwick, (917) 865–8660, www.batha.us]. Free entry.

Sunday

February 23

Sweep the leg

Scrubbing day is my favorite day: Cleaning expert Jolie Kerr launches her book “My Boyfriend Barfed In My Handbag” at Dumbo’s powerHouse Arena on Feb. 26.

Strike first, strike hard, and show no mercy at a special brunch screening of “The Karate Kid” at Videology. The event will include a Skype Q&A with the film’s director John G. Avildsen. Don’t be scared to ask him that burning question you have had since 1984 — fear does not exist in this cinema.

11:45 am Videology [308 Bedford Ave. at S. First Street in Williamsburg, (718) 782–3468, www.videology.info]. $11.

Monday

February 17

Star power

Stimulate your brain and your funny-bone when celebrity astrophysicist Neil deGrasse Tyson comes to the Brooklyn Academy of Music for a live recording of his popular science podcast “StarTalk.” Tyson will be joined by Park Slope-based stand-up comedian Eugene Mirmam, and actress Mayim Bialik — who not only stars on TV show “The Big Bang Theory” but also holds a doctorate in neuroscience.

Saucy: Pick up locally-made artisan condiments at the “Batchery” pop-up market on Feb. 22.

Associated Press / Larry Crowe

8 pm at Brooklyn Academy of Music, Howard Gilman Opera House [30 Lafayette Ave. between Ashland Place and St. Felix Street in Fort Greene, (718) 636–4100, www.bam.org]. $35–$50.

Wednesday

February 26

Clean machine

Don’t know how to get that mustard stain out of your shirt? That McDonald’s smell out of your car seats? “Hipster homemaker” Jolie Kerr, author of the very funny “Ask a Clean Person” column on websites Jezebel and Deadspin, releases her new book “My Boyfriend Barfed In My Handbag … And Other Things You Can’t Ask Martha” in Dumbo.

7pm at powerHouse Arena [37 Main St. at Water Street in Dumbo, (718) 666–3049, www.powerhousearena.com], Free.