Watson's post-Potter acting doubts
The 23-year-old, who played Muggle wizard Hermione in the blockbuster series, told The Sunday Times she threw herself into academia after filming finished in 2011.
She said she found it "intimidating" emerging from the shadow of JK Rowling's magical characters.
The star of upcoming Biblical epic Noah told the paper that her agent did not even send her scripts for the first year after leaving Hogwarts in ruins in Harry Potter And The Deathly Hallows: Part 2.
They included last year's The Bling Ring for Sofia Coppola.
She said: "After Harry Potter, all that mattered was university. I didn't even know if I wanted to be an actress."
She added: "For a while it was amazing, as the American press afforded me so much privacy."