(at around 19 mins) Ted Scott opens a door and the wall of a completely different room is shown outside to the room featured in the next shot.
Ted says there's a full moon out, which would be the only illumination source for the skiers coming down from dinner. However, shadows of trees and skiers sometimes fall downhill and other times uphill.
At Ellis Island, when the couple picks up their refugee, the little boys says "God dag" but his lips say "Hello".
After Karen falls (on purpose) and knocks Ted's skis down the hill, Ted says, "Well, they're gone; right to the bottom". However, while one ski might have made it "to the bottom", it can be seen that the other ski traveled off to the left of the trail toward a tree, hit some grass/weeds, and stopped. He easily could have retrieved it and, being an excellent skier, could have gotten down the trail.
After Vivian announces Ted's and her engagement, the waitress comes to the table and says "Anyone planning to use the lift will need to be ready in 20 minutes; they're only running it for one trip." Whereas a tram or gondola might make "only one trip", a ski lift is a continuous loop, so it would keep running until the last person in line gets on.