Michelle Williams and daughter Matilda had a family outing in Los Angeles on Sunday as they went to the theater with Williams' boyfriend Jason Segel.

The group checked out a performance of "Snow White" at the Pantages Theater in L.A., but Matilda didn't look happy with all the attention her family attracted.

CLICK HERE for photos of Williams, Segel and Matilda on the Los Angeles streets.

Six-year-old Matilda stuck close to her mother and kept behind her to hide from paparazzi photographers snapping away, and Williams looked to be comforting her daughter as much as she could.

Sources say Segel has stepped in as a stepfather of sorts to Matilda, whose father is the late Heath Ledger, with whom Williams had a longtime relationship that ended before Ledger's death in 2008.

Segel even reached out to Kim Legder, Heath's father, to build a relationship with that side of the family and get their blessing to be in Matilda's life, according to Radar online.

"Jason got on the phone and introduced himself to Kim, and then invited the Ledgers to use his home whenever they wanted to fly in from Australia to visit Michelle and Maddie," a source said.

Williams and Segel went public with their relationship in April, and rumors have swirled that the couple may consider marriage after Segel leaves his hit show "How I Met Your Mother" after the upcoming eighth season.

Tags: Michelle Williams Jason Segel