This is from Dil to Pagal Hai The scene where SRk and Madhuri attend a friend's reception and Madhuri loses her earring and SRK has it and says "Aur Paas". Madhuri was superb and she acts as if she was drawn towards SRK with out even relaizing she was walking towards him.
Another one I like is from the English Movie "The last of the mohicans" where Daniel Day lewis goes to rescue Madeline stowe towards the end of the movie from the natives.