Visible crew/equipment: When Crown nearly walks into the lorry at the beginning you can see cables of sort in the left hand mirror from the shot inside the lorry. (00:02:50)
Visible crew/equipment: When Thomas Crown exits the museum after having stolen the Monet, we see a couple of strange characters, probably crew members, standing on the ledge of the building just behind the cab he gets into. The man with the mask is the most interesting. (00:20:15)
Answer: On the commentary track for the DVD the director states that he has no idea how Thomas Crown stole the final painting.