So here's what we know about Robbie Arnett, Elizabeth Olsen's husband. Arnett ... Arnett is also an author, co-writing a book for kids with Olsen titled Hattie Harmony: Worry Detective, published ...

Source: Box Office Mojo Olsen and Aaron Taylor-Johnson, who played her on-screen husband in "Godzilla," will reunite as superhero-siblings in the highly anticipated "Avengers: Age of Ultron." ...

She later told Jimmy Fallon on The Tonight Show that Arnett came up with the title, gushing, “That's my husband ... Arnett has joined Olsen as she's moved around for her intense Marvel shooting ...