As someone else mentioned, 1963 is still early enough that Elvis Presley looks like he's enjoying himself in "It Happened at the World's Fair," which also stars Gary Lockwood, Joan O'Brien and Vicky Tiu. Pilots Mike (Elvis) and Danny (Lockwood) find themselves without a plane after it's confiscated for debts due to Lockwood's addiction to gambling. They hitch a ride to Seattle with a man and his 7-year-old niece Sue-Lin (Tiu), and Mike ends up taking the little girl to the 1962 World's Fair. When she eats too much junk, he takes her to the clinic, where he meets Diane Warren (Joan O'Brien), a nurse. He comes on a little strong - so strong, I'm surprised she didn't call security. In order to see her again, he gives a little boy (Kurt Russell) a quarter to kick him in the shins.
After he return Sue-Lin to her uncle, she finds Mike again when her uncle doesn't come home from making a delivery. Mike now has to cope with a not very helpful partner, trying to think of a way to get his plane back, romancing Diane and taking care of a 7-year-old girl.
This is the usual Elvis travelogue, but more interesting than others because it's shot on the grounds of the Seattle World's Fair and has that iconic moment when future brilliant Elvis impersonator Russell lets him have it in the shins. Elvis looks great and as usual sings beautifully. The music is pretty good. This wasn't the film career Elvis wanted but unfortunately for his ambitions, these films made money. Enjoyable.