Who Framed Roger Rabbit is infamous for including a number of cartoon characters and Tom & Jerry were supposed to star in the movie. However, due to legal issues this didn’t happen. Nevertheless, both characters have appearances in other live action films from the 1940s and 1950s.
As with pretty much anything else, Tom & Jerry spawned a number of knock-off series. One of the most infamous ones were the so-called Herman and Katnip, but as you’d expect the show didn’t really catch on.