When Thor finds the glove Dr Smith brought with him, it is a right one.
When Will finds the other glove it is also a right one, not a left.
When Will is talking to Brynhilda (telling her he's a boy), he repeatedly looks up while talking to her, even when she is sitting down next to him at lower than eye level.
The markings on the gloves are definitely not runes or any other type of writing used by Nordic cultures. They do not, in fact, bear any resemblance to any script used on Earth.
The winged horse is obviously fake.
Professor Robinson suggests they 'reconnoiter' the entire area near Thor's hammer, but he grossly mispronounces the word 'reconnoiter'.