Which is a sequel to more films, Garfield's Pet Force or Hero of the Rails?
Garfield's Pet Force: Garfield's Pet Force is a 2009 direct-to-video animation comedy family Computer animation (CGI) film based on characters from the Jim Davis comic strip "Garfield" and loosely based on the Pet Force novel series. Garfield's Pet Force:  It is the sequel to "Garfield Gets Real" and "Garfield's Fun Fest". Hero of the Rails: Hero of the Rails is a 2009 CGI adventure drama special and film spin-off of the TV series "Thomas & Friends". Hero of the Rails:  To promote the film a "Day Out With Thomas 2010: The Hero of the Rails Tour" was held at locations such as the Illinois Railway Museum, where guests could participate in activities such as arts and crafts or ride on a 15-ton replica of Thomas the Tank Engine. Hero of the Rails:  A mobile app, "Thomas & Friends: Hero of the Rail", was released in May 2011.
i don't know