in the begginning when that guy tells cal he has to go around to to the inspection thing cal hands him what seems to be money but if you look at it it is just paper with the rooms where he is supposed to bring the bags.
It *does* look like Cal hands him a piece of paper that is larger than any type of paper money, but it is Lovejoy (the manservant/bodyguard) that has the paper with the rooms on it ("the parlor suite, rooms B-52, 54, 56"). I'm not sure what's on that paper Cal hands the porter, unless money in 1912 was a bit larger than it is now.
Up until the Second World War English paper money was very large in size. It also looked rather like printed words (although very ornate) on plain white paper. Try to find an example in a book. These notes really were amazingly big compared to what we are used to today. This is not really a slip up. (Unusual in "Titanic"!)
English pound notes were a lot bigger than they are today. The men used to have to carry around bill folds that were the size of an A5 piece of paper to be able to carry them around.
Well first of all, back in 1914 dollar bills were much larger than the ordinary bill today, like many people before have said. And also correct is that the paper with the rooms on it is held by Lovejoy (B-52, 54, 56) But even if what Cal gave the man wasn't money, the man could have realized that he was Cal Hockley, a very rich man who might just slip some money his way for being a help. Great movie, though! I love it!