I dunno what it is with Bill Murray maybe this is just me but he always seems to make eye-contact with the camera at some point in his films as if to say 'I told you so' or a quick glare at the camera to confirm something funny that has just happened.. Ghostbusters, Caddyshack & Groundhog Day he's done it in all of them.. prob his style of humour has over-spilled into the final edit or something.. gotta love the guy though