Dylan Sprouse   acted fast when he woke up to a trespasser at his and wife  Barbara Palvin 's Hollywood Hills property last week ... and new footage from the incident shows him holding what appears to be a gun while speaking to the alleged trespasser at the scene. TMZ has obtained video of the Disney alum speaking in an animated fashion to the man garbed in all black outside his home Friday morning ... and you can see the alleged silver weapon at his side in his right hand. The person Dylan is