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An acoustic brunch, a crawfish boil and more things to do in Chicago this weekend, March 4-6.

EAT

Battle of the ‘Balls

Formento’s

925 W. Randolph St. 312-690-7295

Try 14 chefs’ meatballs along with wine, beer and negronis at the inaugural competition. Noon and 2 p.m. Sunday. $60. Tickets: battleoftheballs.bpt.me

Who Dat Nation Crawfish Boil

Frontier

1072 N. Milwaukee Ave. 773-772-4322

The New Orleans Saints fan club celebrates crawfish season with an all-you-can-eat feast including potatoes and corn plus music from the Four Star Brass Band. 5 p.m. Sunday. $25. Tickets: thefrontierchicago.com

Acoustic Brunch

Gaslight

2450 N. Clark St. 773-929-7759

Dine on biscuit sliders, chorizo tacos or chicken and waffles ($8 each) paired with a $5 bloody mary or $10 mimosa package including a bottle of champagne and endless orange juice in the Lincoln Park bar’s beer garden while listening to Evan Hand play covers. 11 a.m.-3 p.m. Saturday. No cover.

DRINK

The Big Lebowski’s 18th Birthday Party

The Smoke Daddy

1804 W. Division St. 773-772-6656

The cult classic plays on a loop at the West Town spot while Patrick Gemkow plays the film’s soundtrack. The bash also features a costume contest awarding gift cards and swag, trivia, giveaways and drink specials including $4 Caucasians and $3 Miller High Life. 4-10 p.m. Sunday. No cover.

Unofficial in Chicago
Unofficial in Chicago

Unofficial in Chicago

John Barleycorn

3524 N. Clark St. 773-348-8899

Warm up for St. Patrick’s Day at the seventh annual Wrigleyville bar crawl, which includes a T-shirt, breakfast buffet and $12 worth of gift cards. 10 a.m.-5 p.m. Saturday $20. Tickets: unofficialinchicago.com

DO

Martha Stewart’s Wedding Party

The Ritz-Carlton, Chicago

160 E. Pearson St.

Check out the latest trends in wedding fashion and floral designs and browse 50 vendors while enjoying champagne and sweets. For $65 you’ll get in an hour early and take home a gift bag. Noon-3 p.m. Sunday. $40-$65. Tickets: weddingpartynewyork.com

‘In Our Son’s Name’ Screening (Free!)

Claudia Cassidy Theater

78 E. Washington St. 312-744-6630

See the documentary about a New York couple whose son died at the World Trade Center on Sept. 11, 2001 that wound up befriending the mother of one of the attack’s conspirators, followed by a Q&A with the director and one of the film’s subjects. The screening is part of the annual Peace on Earth Film Festival, which runs through Sunday. 8:20 p.m. Friday. Free.

'Good Evening With Pat Whalen'
‘Good Evening With Pat Whalen’

‘Good Evening With Pat Whalen’

The Frontier

1106 W. Thorndale Ave. 773-340-2543

Catch a live recording of the monthly late-night show, which offers a satirical examination of Chicago’s politics, arts and culture through a mix of performances, interviews and games. 11 p.m. Friday; doors open at 10:30 p.m. $10. Tickets: jackalopetheatre.org

HAPPY HOUR OF THE DAY

She-nannigans (16 W. Division St. 312-642-2344) offers $6 domestic pitchers, $4 import bottles, and $4 Jim Beam, Absolut and Maestro Dobel from 4-7 p.m. Friday.

Want to learn how to brew beer or make an excellent cocktail? Click here for classes in Chicago.