Yep - the hello wave is very similar to the 'I don't actually know you but I'm just saying hi anyway' acknowledgment. I always thought that it was pretty common here in Australia, but I was talking to a computer programmer the other day and he had no idea what I was talking about. I guess he wasn't alone in having no idea!

Derek Jacobi and John Simm were pretty hard, but I managed it!

David Hewlett to Clive Owen
David Hewlett - Robert Patrick (Stargate Atlantis)
Robert Patrick - Bruce Willis (Die Hard 2)
Bruce Willis - Clive Owen (Sin City)

David Hewlett to Derek Jacobi
David Hewlett - Robert Partrick (Stargate Atlantis)
Robert Patrick - Joaquin Phoenix (Ladder 49)
Joaquin Phoenix - Derek Jacobi (Gladiator)

David Hewlett to John Simm
David Hewlett - Uma Thurman (Where the Heart Is)
Uma Thurman - Ben Affleck (Paycheck)
Ben Affleck - Chirstina Ricci (200 Cigarettes)
Christina Ricci - John Simm (Miranda)