I’ve not noted that much success with this maneuver. Bewitched sure didn’t do well. Beverly Hillbillies and Car 54 seemed to suck. So did Wild, Wild West.
OTOH, Police Squad was a great TV show (albeit short-lived) and a great flick.
Now we’ve got Get Smart coming at us. Can My mother the car be far away?
That was wonderful. Damned if I can think of others at the moment, though.
The movie Dragnet was great, but it was more of a spoof of a non-sitcom TV show. And Brady Bunch movie wasn’t bad either, but that was due to it spoofing the original.
You’d have to stretch the definitions of both sitcom and successful to include the Mel Gibson knockoff of Maverick, but it’s in the ballpark and I was able to think of it right away.
Lucy and Desi made The Long, Long Trailer (1954) which did fairly well as I recall. Not a direct copy of the sitcom as such, but everybody was pretty in on the reason the movie came out.
There were only two of them- theatrically, at least. There was a made-for-TV movie about the Bradys in the White House a couple years ago, but I don’t know if it was as tongue-in-cheek as the films were.
It already came at us once: The Nude Bomb. That was in 1980, though. Maybe it’s just time for another?
It wasn’t really a sitcom originally, but I quite liked the Rocky and Bullwinkle movie that was out a few years ago. Just DeNiro (playing Fearless Leader) saying, “You talking to me? Are you talking to me?” was priceless.