The Dark Knight Rises and Inception star quietly tied the knot with his girlfriend Tasha McCauley in a ceremony held at their home on Saturday, 20 December.
A rep for Joseph confirmed the nuptials but declined to reveal any other information about the event.
Joseph prefers to keep his professional and private lives separate so he's rarely been photographed out with Tasha and never brings her to red carpet events.
Tasha works at a Silicon Valley robotics company called Fellow Robots.
Joseph confirmed their relationship back in 2013 but said he didn't want to discuss it in detail as Tasha preferred to remain away from the Hollywood limelight.
He told Howard Stern's radio show: "The girl that I'm with, she really doesn't want to be a part of it. You can imagine not wanting to have that kind of scrutiny."
Congrats to Joseph and Tasha!
More stars who married in 2014:
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