I did find an article that in a tangential way reflects my current thinking.
The general critical response to Transformers: Revenge of the Fallen is mostly a mad rush to find the right metaphor to describe how it feels to be trapped in a working food blender for two and a half hours. Although many critics have also generously found time to despise the plot, the characters, the dialogue and the special effects, it’s the two and a half hours that seems to grate the most. What does this movie think it is? Titanic?
Transformers: Revenge of the Fallen is indeed way too long, but that’s part of movie-making this year. At the recent Cannes film festival, film after film unspoiled at unconscionable length — “two and a half hours is the new 90 minutes,” someone said...
...In this company two-hour movies — like Ang Lee’s Taking Woodstock — seemed modest. But not as modest as Wild Grass (Les Herbes Folles), a lovely little bit of ambiguity by French master Alan Resnais that managed to tell a complex, teasing little story of love and obsession in 104 minutes. It was announced this week that Wild Grass is coming to the Toronto film festival, along with another movie from a legendary director, Manoel de Oliveira’s Eccentrities of a Blonde-Haired Girl, which is also about love and obsession. It runs for 63 minutes.
Significantly, Renais is 89 years old and Oliveira turns 101 in December: they understand about time. It’s precious, and who has two and a half hours to spend on robots?
Taken from canada.com