filed under: Shia LaBeouf

Shia LaBeouf may have more to worry about than the drunken- driving charge he got after crashing his truck with Australian hottie Isabel Lucas strapped in the passenger seat.

Lucas, one of LaBeouf's comely co-stars in the upcoming "Transformers" sequel, has been dating actor Adrian Grenier for months.

[Grenier] was testy and had no comment Monday when asked how Lucas was feeling after the smashup with her other leading man.

Lucas, 23, was in LaBeouf’s car when it collided with another vehicle at a West Hollywood intersection early Sunday morning and rolled. She was treated for minor bumps and bruises at Cedars-Sinai Medical Center and released.

“She was in the car….They’re friends,” a movie source said of the LaBeouf-Lucas connection. The source said the two have been working a lot of late nights on the set and most likely were together to let off some professional steam.

"Attorneys for Mr. LaBeouf confirm that an automobile accident involving an additional party occurred early morning in Los Angeles on July 27, 2008. Shia is currently recovering from extensive hand surgery with plans to return to work on the set of 'Transformers 2' within one month. No further comment will be issued at this time."

“As big as the first movie was, this is 10 times as big, 10 times as many set pieces, explosions, and acrobatic stunts,” she told us about “Transformers: Revenge of the Fallen. “Shia and I make out a little bit; I don’t know if anyone wants to see that.”

“You know, we’ve been having script meetings, and we’ve been reworking the script, because they wrote it fast because of the writer’s strike,” she explained. “And, we’ve just been going through and trying to do some character stuff for Shia and myself in the middle of this crazy world that they’re in.”

“I can tell you that we’re on locations in some really exotic places,” she added. “It’s just going to be a badass movie. It’s just going to be a popcorn-visual-spectacle, summer film.”

As for Michael Bay’s main directorial input to his lead actress, Megan had this to say: “His main note to me is just to look hot; so I try my best.”

We've learned a warrant has been issued for the arrest of Shia LaBeouf.

LaBeouf received a ticket February 18 in Burbank for unlawful smoking, a misdemeanor. He was supposed to appear in court at 8:30 AM, but neither he nor a lawyer showed -- so a $1,000 bench warrant was issued for Shia's arrest.

Shia was allegedly smoking on the sidewalk outside a shop called Skyblupink, a gift shop, when cops cited him.

Security staff at Walgreens drug store called police after repeatedly asking the 21-year-old actor to leave the store because he appeared to be drunk.

LaBeouf was taken into custody at around 2:30 A.M. and charged with trespassing.

Police spokeswoman Laura Kubiak said the young star was "very courteous and polite".

He was not breathalysed as he had not been driving and was released on bail before 7am. LaBeouf must now appear at Cook County court on a misdemeanour charge on November 28. He is yet to comment on the incident.

The pair – who were photographed enjoying a beverage at a bar last month– are now an item, but are taking things "slow."

“It’s all the talk of the Indiana Jones 4 set,” an insider told Perez Hilton.

The report goes on to claim that LaBeouf took Rihanna out on a romantic date Tuesday at Kate Mantilini in Beverly Hills.

If I'm gonna party, I'll do it at my house. And to say that I've never had a drink or smoked weed - coming from my family, is insane.

But also, I know what it does if you get out of control. I know how hard it was to get my life to where it is. There's so much riding that those small little joys of the high are not interesting to me.