By Jon Boon - Breaking Celebrity News Reporter

Kristen Stewart is having “sleepless nights” as she prepares to promote her new movie at the Toronto Film Festival, Breaking Celebrity News is exclusively reporting.

The Twilight star’s latest flick, On the Road is the first film to screen at the annual event where it premieres on Thursday night, and it comes with a great buzz.

However, K-Stew, 22, is overcome with nerves about her first red carpet appearance since her now infamous cheating scandal and hopes her personal life doesn’t overshadow how the motion picture is received by the critics.

“Kristen Stewart hasn’t been able to get a wink of sleep in the run-up to the film festival,” a source revealed.

“Even though members of the media have been strictly told that questions about her cheating scandal are off-limits, she’s been fretting over the film’s premiere.

“She really hopes that the critics are kind to her when it comes to the reviews and they don’t judge her on her personal life.

“On the Road is a project that’s very close to Kristen’s heart. She is a big fan of the original novel by Jack Kerouac and wants the movie to get the praise she thinks it deserves.

“Kristen’s worried that because it opens the festival, a lot is expected of it and just prays that it’s well received,” the source concluded.

As Breaking Celebrity News prevus reported, Kristen is still struggling to get her life back on track after splitting with Robert Pattinson following her embarrassing cheating scandal with her