THIS WEEKEND

Cold as ice

Rare films of Arctic exploration will be shown at the Academy of Natural Sciences, the culmination of a three-day scientific conference. But you don't have to be a scientist to enjoy these films, some of which have never been screened for the public.

Academy of Natural Sciences, 1900 Benjamin Franklin Parkway, 10 a.m.-12:30 p.m. today, free with museum admission, $10 adults, $8 seniors and students.

Make craft history

The Creative Collective Crafts and Fine Arts Fair sets up shop at historic Headhouse Square beginning this weekend. Throughout the summer and fall, craftspeople will sell jewelry, clothing, ceramics, paintings and more at the city's oldest outdoor market. You can also buy fresh fruit and vegetables from local farmers. The crafts fair is open every Saturday through the end of October and on select Fridays, including July 4 and Aug. 29. Today, Bonnie Bacich, a teacher at Central High and a talented fabric artist and weaver, will conduct a free workshop for children from 1-3 p.m. Young artists will design and make a tie-dyed T-shirt.

Headhouse Square, 2nd and Pine streets, 10 a.m.-10 p.m. today, free, 215-790-0782.

Emo 101

Master clown and actor Bill Irwin (he was Mr. Noodles on "Sesame Street") muses on dreams, puppets, technology and modern life in a new work he's created for the Philadelphia Theater Company. Irwin, doing the physical comedy he's famous for, is joined by eight actor/dancers to deliver "The Happiness Lecture."

Suzanne Roberts Theatre, 480 S. Broad St., 2 and 8 p.m. today, 3 p.m. tomorrow, 8 p.m. Tuesday, 1 and 7 p.m. Wednesday, 8 p.m. Thursday, through June 15, $10-$58, 215-985-0420, www.philadelphiatheatrecompany.org.

Princess diaries

An engaging musical based on Frances Hodgson Burnett's story "A Little Princess" is about Sara Crewe, an heiress who learns while she is at boarding school that her sea captain father and her fortune have been lost. She's forced by the greedy headmaster to become a servant, living in a wretched attic room. Her life changes dramatically when an Indian magician moves in next door.

Hedgerow Theatre, 64 Rose Valley Road, Media, 4 and 7:30 p.m. today, 2 and 7:30 p.m. tomorrow, through June 7, $10-$20, 610-565-4211.

Nina's girl

Though she's done stints in R&B groups and on Broadway, Simone is focused these days on the jazz-centric music of her late, legendary mom, Nina Simone. The younger has a terrific voice and handle on the material, and will do it up live (just like on her new album) with the dynamic, horn-rich Rob Stoneback Big Band.

World Cafe Live, 3025 Walnut St., 7:30 tonight, $40, 215-222-1400, www.worldcafelive.com.

Open 'House'

Wednesday is opening night for a world premiere that will conclude Interact Theatre Company's 20th anniversary season. "House, Divided" is about two brothers and their grown sons, who find themselves divided between Philadelphia and Israel because of their faith. A number of special events are planned during the monthlong run of the play, including post-performance talkbacks following Sunday matinees.

InterAct Theatre, 2030 Sansom St., previews: 8 tonight, 2 p.m. tomorrow, 7 p.m. Tuesday, opening night 7 p.m. Wednesday, 8 p.m. Thursday, through June 22, $15-$27, 215-568-8077.

NEXT WEEK

Hard times

A musical adaptation of Hans Christian Andersen's tale "The Princess and the Pea" will delight young theatergoers (and their parents). The Storybook Musical Theatre production is appropriate for ages 3 and older.

Mitchell Performing Arts Center, 800 Tomlinson Road, Bryn Athyn, 10:15 a.m. Tuesday-Thursday, 10:15 a.m. May 30, 11 a.m. May 31, 2 p.m. June 1, $10-$12, 215-659-8550.

Junior Versaces

Get a glimpse of fashion's future when Drexel's Westphal College presents its annual fashion show. The collections include evening wear, men's and women's sportswear, children's wear, swimwear and even lingerie. The designs of 30 graduating seniors and six graduate students will be showcased. This show is also a competition: Major retailers such as Saks Fifth Avenue and Neiman Marcus provide prizes for the top designers.

Crystal Tea Room, Wanamaker Building, 100 Penn Square East, 5 and 8 p.m. Wednesday, $25 for 5 p.m. show, $50 for 8 p.m. show, which includes reception, 215-895-1838, www.drexel.edu/

westphal.