LONGMONT — A film starring Luke Wilson and Jessica Alba is shooting throughout Boulder County — including possible sites in Longmont, Lyons, Niwot and Hygiene — for the next several weeks, according to numerous sources.

Shooting of “Dear Eleanor,” produced by Leonardo DiCaprio, is scheduled to start today, according to a website for the casting of extras.

Caleb Applegate, a producer of the film, said he preferred to limit publicity about the shoot, largely for the sake of security. He said the crew will be in Boulder County “a little while” and will include many locations.

“We’re going to be all over the place,” Applegate said.

On Friday, he wrote on Twitter, “T-4 days until filming …”

DiCaprio is not expected to visit the shoot, Applegate said.

Online resources list the film’s director as Kevin Connolly, a star of the HBO series “Entourage,” and its cast as including Wilson, Alba, Liana Liberato, Isabelle Fuhrman and Joel Courtney. Sources with knowledge of the production confirmed this.

Courtney, who starred in the Steven Spielberg-produced “Super 8,” posted on Twitter pictures of himself in Boulder on Saturday and Sunday, and he wrote about hanging out in Boulder with Fuhrman, star of the 2009 horror film “Orphan.”

The production has asked the Boulder County Sheriff’s Office for road closures in downtown Niwot and traffic control services in Hygiene, according to sheriff spokesman Cmdr. Rick Brough.

The Niwot closures are scheduled for 6 to 9 p.m. Saturday, May 18, and all day Tuesday, May 21, on Second Avenue from Niwot Road to Murray Street.

Traffic control in Hygiene is scheduled for an undetermined time during the day on Wednesday, May 22, around North 75th Street and Hygiene Road.

The production has inquired about the process to engage city services in Longmont, according to Longmont Police Cmdr. Jeff Satur.

Members of the production team have visited several sites in Longmont, including the Longmont Performing Arts Center, Dickens Opera House, The Speakeasy bar and Jesters Dinner Theatre, according to people who own or help manage those venues.

“There’s a couple scenes they’d like to do there,” said Scott Moore, owner of Jesters, located at 224 Main St.

Up to 20 members of the production crew visited the theater last week and indicated they might want to use the theater later this month, Moore said. Jesters would stand in for a theater owned by Alba’s character, as Moore understands the scenario.

“Supposedly, this would be the theater she owns and performs at,” Moore said.

Members of the crew visited The Speakeasy, at 301 Main St., about four times, including once when Connolly showed up, said Speakeasy owner Sarah Carrillo.

“He’s cool,” Carrillo said. “He’s much smaller than I imagined him to be, but they were cool.”

Connolly told her The Speakeasy would make a good location.

“He sat down and he was like, ‘This is perfect.’ He said, ‘I love it.'” But she has yet to hear back from producers about shooting there, she said.

Members of the crew had a kind of Hollywood-like “arrogant air” about them when they visited, Carrillo said. When they first came by, The Speakeasy was closed and Carrillo was mopping the floor.

“They walked in and they just blew right past me like I was the cleaning lady,” she said, adding that the visitors were friendly when she introduced herself.

“Dear Eleanor,” reportedly set in the early 1960s, is about two best friends who travel across the country to meet their childhood hero, Eleanor Roosevelt.

A member of the production team who asked to remain anonymous indicated the film has a budget of under $1 million.

Quentin Young can be reached at 303-684-5319 or qyoung@times-call.com.