The 41-year-old actor - who is due to portray Batman in the forthcoming 'Man of Steel' sequel opposite fellow DC Comics superhero Superman - was delighted to learn his penis size had been praised at the Annual Producers Guild of America Awards, but claimed he had been the fortunate victim of mistaken identity.
His manhood came under the spotlight when 'Two and a Half Men' producer Chuck Lorre took to the stage at the Beverly Hilton Hotel and said he had urinated next to the star at the Golden Globe Awards last week.
Chuck added: "Yes I peeked. And yes, Comic Con, he can play Batman."
When Ben - who has three children, Violet, eight, Seraphina, five, and 23-month-old Samuel, with wife Jennifer Garner - later took to the stage, and said: "I was at the bar briefly, and I came back to my seat and somebody said, 'You know, there was a guy up on stage who said you have a big d**k.' I was like, 'You know, isn't that always how is goes? The one time it happens and I miss it!'
"Thank you very much. Whoever you are, God bless you. I'm often confused with Matt Damon but rarely with Michael Fassbender, so..."