Here is the second Marvel One-Shot: "A Funny Thing Happened On The Way to Thor's Hammer" with Agent Coulson(Clark Gregg) from the Captain America: The First Avenger Blu-ray and DVD which are available on October 25 in the US, December 5, 2011 for us in Ireland and the UK.
‘A Funny Thing Happened on the Way to Thor’s Hammer…’ picks up after Agent Coulson leaves Tony Stark’s lab in Malibu during ‘Iron Man 2,’ and occurs before he arrives solo at the crater site in ‘Thor.’
Updated:Below are videos of 'The Avengers' panel from New York Comic Con 2011:
Full Panel