The Lord of the Rings star was attacked outside the Hill Bar and Brasserie in Camden, north London during a night out.
He is said to have sustained a stab wound to the arm, but refused to be treated at hospital - and he has also opted not to file an official complaint with police.
A police source tells Britain's The Sun, "Police were called but the alleged victim didn't want to make a complaint. No further action was taken."
Bean's 19-year-old daughter Molly reveals the star is recovering well, insisting, "Dad's just resting at home at the moment. Fortunately it wasn't too serious. He'll be fine."