The MovieBitches blog on Youtube points out (accurately, I think) that MOMMIE DEAREST's flaw was mainly in what it
didn't do, that the lack of transitional moments between scenes and timeframes gave it it's clunky feeling, the TV movie flavor, to it.
And I tend very much to agree with that. Also, there's not a single scene which even surfacely addresses Joan Crawford's' dreadful childhood in south Texas -- the poverty, the sex abuse she "didn't mind" at age 11 by her stepfather, the squalid room behind the laundry where she and her family lived, and her life-long resentment of her mother (who later disappeared suspiciously and was probably placed in a horrible old-folks' home without explanation) for subjecting Joan to those early circumstances -- goes completely unaddressed.
So, to my thinking (and I gave in and bought the DVD in 2016 -- although it might have actually been 2006, 'cause shyte is beginning to blur) the flaw of MOMMIE DEAREST was not the principle photography but in what they
didn't bother to do -- which would have taken very little: a few montages, that scene in the basement (when Joan tells her daughter that she's lost her studio contract and doesn't have any money with which to buy Christina anything) when just a wee bit of exposition into Joan's past could have occurred, etc...
Context really is everything (which is why most DYNASTY scenes on Youtube actually make the show look
better than it was) and I would
not have removed any single frame of what they
did do in MOMMIE DEAREST; I would just have added a few things.