Both Rainbow Fireflies and The Girl Who Leapt Through Time are clear influences on Your Name, which is fine, but Your Name isn’t a redeaux version of either.
On the left are scenes from Rainbow Fireflies, released in 2012, and Mamoru Hosoda’s The Girl Who Leapt Through Time, released in 2006.
Your Name is one of the most successful anime movies ever released in Japan.
However, a new YouTube clip alleges that Your Name lifted several sequences from other anime movies.