Long Long Trailer Movie

I remember watching that movie as kids. We were able to relate to it because in 1948 My parents loaded kids and my aunt into a car and followed my Dad and big brothers who were in a truck pulling a “Long long trailer” We started in New York and ended up in California. It was supposed to be a permanent move but we ended up coming back. We have driven our motor home across the country a few times. Cannot imagine what it was like with no freeways and limited facilities. I was very young and only remember the stories. not much of the actual trip.