Read the following premise and answer if the hypothesis is true.
Walking on Sunshine is a 2014 British romantic musical comedy-drama film directed by Max Giwa and Diana Pasquini. The film features covers of songs from the 1980s and was released on 27 June 2014. It is also a debut role for singer-songwriter Leona Lewis.
Hypothesis: Walking on Sunshine was Leona Lewis first and last appearance. Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
It's impossible to say
It's impossible to say. The hypothesis only mentions her first appearance in the film, but it does not provide information about her last appearance.