Mulligan, an Oscar nominee for her role in "The Education," has been dating LaBeouf.
In an interview to be publishing in GQ's April issue, the actor refuses to talk about his girlfriend, who stars with him in the upcoming film "Wall Street: Money Never Sleeps." He did, however call her the most talented actress he has ever met.
La Beouf did, however, talk about his 2008 car accident which seriously injured his hand. He was booked for DUI in connection with the crash but was never charged.
The actor also had a lot to say about Khloe Kardashian, who offered him very public advice on dealing with a DUI after the crash.
More photos and story at GQ Online.