In 'Age of Adaline', the general idea of her agelessness is likely the core aspect true to the original story. This unique condition would have had a profound impact on her life, just as it does in the movie. Her experiences with different generations, for example, may also be based on the true story. She has relationships with people from different eras, and this could be a result of the real - life situation that inspired the movie. The movie also shows her struggle to find true love while dealing with her secret, which might be a part of the true - story - inspired elements as well.